Checkpoint checkin of patch code.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2119 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/admin/patch/AbstractPatch.java

@@ -0,0 +1,232 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+package org.alfresco.repo.admin.patch;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.util.Collections;
+import java.util.List;
+
+import org.alfresco.error.AlfrescoRuntimeException;
+import org.alfresco.repo.transaction.TransactionUtil;
+import org.alfresco.repo.transaction.TransactionUtil.TransactionWork;
+import org.alfresco.service.cmr.admin.PatchException;
+import org.alfresco.service.transaction.TransactionService;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+/**
+ * Base implementation of the patch.  This class ensures that the patch is
+ * thread- and transaction-safe.
+ * 
+ * @author Derek Hulley
+ */
+public abstract class AbstractPatch implements Patch
+{
+    private static Log logger = LogFactory.getLog(AbstractPatch.class);
+    
+    private String id;
+    private String applyAfterVersion;
+    private String description;
+    /** a list of patches that this one depends on */
+    private List<Patch> dependsOn;
+    /** flag indicating if the patch was successfully applied */
+    private boolean applied;
+    private TransactionService transactionService;
+
+    public AbstractPatch()
+    {
+        this.applied = false;
+        this.dependsOn = Collections.emptyList();
+    }
+    
+    @Override
+    public String toString()
+    {
+        StringBuilder sb = new StringBuilder(56);
+        sb.append("Patch")
+          .append("[id=").append(getId())
+          .append(", after=").append(getApplyAfterVersion())
+          .append(", description=").append(getDescription())
+          .append("]");
+        return sb.toString();
+    }
+    
+    /**
+     * Set the transaction provider so that each execution can be performed within a transaction
+     */
+    public void setTransactionService(TransactionService transactionService)
+    {
+        this.transactionService = transactionService;
+    }
+    
+    public String getId()
+    {
+        return id;
+    }
+
+    /**
+     * 
+     * @param id the unique ID of the patch.  This dictates the order in which patches are applied.
+     */
+    public void setId(String id)
+    {
+        this.id = id;
+    }
+
+    public String getApplyAfterVersion()
+    {
+        return applyAfterVersion;
+    }
+
+    /**
+     * 
+     * @param applyAfterVersion the version of the repository after which this patch must be applied.
+     */
+    public void setApplyAfterVersion(String applyAfterVersion)
+    {
+        this.applyAfterVersion = applyAfterVersion;
+    }
+
+    public String getDescription()
+    {
+        return description;
+    }
+
+    /**
+     * @param description a thorough description of the patch
+     */
+    public void setDescription(String description)
+    {
+        this.description = description;
+    }
+
+    public List<Patch> getDependsOn()
+    {
+        return this.dependsOn;
+    }
+    /**
+     * Set all the dependencies for this patch.  It should not be executed
+     * before all the dependencies have been applied.
+     * 
+     * @param dependsOn a list of dependencies
+     */
+    public void setDependsOn(List<Patch> dependsOn)
+    {
+        this.dependsOn = dependsOn;
+    }
+
+    /**
+     * Sets up the transaction and ensures thread-safety.
+     * 
+     * @see #applyInternal()
+     */
+    public synchronized String apply() throws PatchException
+    {
+        // ensure that this has not been executed already
+        if (applied)
+        {
+            throw new AlfrescoRuntimeException("The patch has already been executed: \n" +
+                    "   patch: " + this);
+        }
+        // check that the necessary properties have been set
+        if (id == null || applyAfterVersion == null || description == null)
+        {
+            throw new AlfrescoRuntimeException(
+                    "Patch properties 'id', 'applyAfterVersion' and 'description' have not all been set on this patch: \n" +
+                    "   patch: " + this);
+        }
+        else if (transactionService == null)
+        {
+            throw new AlfrescoRuntimeException("'transactionService' property has not been set: \n" +
+                    "   patch: " + this);
+        }
+        // execute in a transaction
+        try
+        {
+            TransactionWork<String> patchWork = new TransactionWork<String>()
+            {
+                public String doWork() throws Exception
+                {
+                    String report = applyInternal();
+                    // done
+                    return report;
+                };
+            };
+            String report = TransactionUtil.executeInUserTransaction(transactionService, patchWork);
+            // the patch was successfully applied
+            applied = true;
+            // done
+            if (logger.isDebugEnabled())
+            {
+                logger.debug("Patch successfully applied: \n" +
+                        "   patch: " + this + "\n" +
+                        "   report: " + report);
+            }
+            return report;
+        }
+        catch (PatchException e)
+        {
+            // no need to extract the exception
+            throw e;
+        }
+        catch (Throwable e)
+        {
+            // check whether there is an embedded patch exception
+            Throwable cause = e.getCause();
+            if (cause != null && cause instanceof PatchException)
+            {
+                throw (PatchException) cause;
+            }
+            // need to generate a message from the exception
+            String report = makeReport(e);
+            // generate the correct exception
+            throw new PatchException(report);
+        }
+    }
+    
+    /**
+     * Dumps the error's full message and trace to the String
+     * 
+     * @param e the throwable
+     * @return Returns a String representative of the printStackTrace method
+     */
+    private String makeReport(Throwable e)
+    {
+        StringWriter stringWriter = new StringWriter(1024);
+        PrintWriter printWriter = new PrintWriter(stringWriter, true);
+        try
+        {
+            e.printStackTrace(printWriter);
+            return stringWriter.toString();
+        }
+        finally
+        {
+            printWriter.close();
+        }
+    }
+
+    /**
+     * This method does the work.  All transactions and thread-safety will be taken care of by this class.
+     * Any exception will result in the transaction being rolled back.
+     * 
+     * @return Returns the report (only success messages).
+     * @see #apply()
+     * @throws Exception anything can be thrown.  This must be used for all failures.
+     */
+    protected abstract String applyInternal() throws Exception;
+}

source/java/org/alfresco/repo/admin/patch/Patch.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+package org.alfresco.repo.admin.patch;
+
+import java.util.List;
+
+import org.alfresco.service.cmr.admin.PatchException;
+
+/**
+ * A patch is an executable class that makes a change to persisted data.
+ * <p>
+ * Auditing information is not maintained by the patch - rather it is solely
+ * responsible for the execution of the processes necessary to apply the patch.
+ * <p>
+ * Patches must not be reappliable.  It is up to the patch management systems
+ * to ensure that patches are <b>never reapplied</b>.
+ * 
+ * @since 1.2
+ * @author Derek Hulley
+ */
+public interface Patch
+{
+    public String getId();
+    
+    public String getDescription();
+    
+    public String getApplyAfterVersion();
+    
+    /**
+     * Get patches that this patch depends on
+     * 
+     * @return Returns a list of patches
+     */
+    public List<Patch> getDependsOn();
+    
+    /**
+     * Applies the patch.  Typically this will be within the bounds of a new
+     * transaction.
+     * 
+     * @return Returns the patch execution report
+     * @throws PatchException if the patch failed to be applied
+     */
+    public String apply() throws PatchException;
+}

source/java/org/alfresco/repo/admin/patch/PatchDaoService.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+package org.alfresco.repo.admin.patch;
+
+import java.util.List;
+
+import org.alfresco.repo.domain.AppliedPatch;
+
+/**
+ * Provides data access support for patch persistence. 
+ * 
+ * @since 1.2
+ * @author Derek Hulley
+ */
+public interface PatchDaoService
+{
+    /**
+     * Creates and saves a new instance of the patch.  This will not have all the mandatory
+     * properties set - only the ID.
+     * 
+     * @param id the unique key
+     * @return Returns a new instance that can be manipulated
+     */
+    public AppliedPatch newAppliedPatch(String id);
+    
+    /**
+     * Retrieve an existing patch
+     * 
+     * @param id the patch unique ID
+     * @return Returns the patch instance or null if one has not been persisted
+     */
+    public AppliedPatch getAppliedPatch(String id);
+    
+    /**
+     * Get a list of all applied patches
+     * 
+     * @return Returns a list of all applied patches
+     */
+    public List<AppliedPatch> getAppliedPatches();
+}

source/java/org/alfresco/repo/admin/patch/PatchService.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+package org.alfresco.repo.admin.patch;
+
+import java.util.List;
+
+import org.alfresco.service.cmr.admin.PatchInfo;
+
+/**
+ * Manages patches applied against the repository.
+ * <p>
+ * Patches are injected into this class and any attempted applications are recorded
+ * for later auditing.
+ * 
+ * @since 1.2
+ * @author Derek Hulley
+ */
+public interface PatchService
+{
+    /**
+     * Set the complete list of patches.  All patch IDs must remain static for the duration their
+     * existence.  This allows us to recognise the 
+     * 
+     * @param patches the complete list of patches (either applied or not)
+     */
+    public void setPatches(List<Patch> patches);
+    
+    /**
+     * Get a list of all previously applied patches
+     * 
+     * @return Returns a list of patch application information
+     */
+    public List<PatchInfo> getAppliedPatches();
+    
+    /**
+     * Apply all outstanding patches that are relevant to the repo.
+     * If there is a failure, then the patches that were applied will remain so,
+     * but the process will not attempt to apply any further patches.
+     * 
+     * @return Returns true if all outstanding patches were applied, or false if the process
+     *      was termintated before all patches could be applied.
+     */
+    public boolean applyOutstandingPatches();
+}

source/java/org/alfresco/repo/admin/patch/PatchServiceImpl.java

@@ -0,0 +1,230 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+package org.alfresco.repo.admin.patch;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.alfresco.repo.domain.AppliedPatch;
+import org.alfresco.service.cmr.admin.PatchException;
+import org.alfresco.service.cmr.admin.PatchInfo;
+import org.alfresco.service.descriptor.Descriptor;
+import org.alfresco.service.descriptor.DescriptorService;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+
+/**
+ * Manages patches applied against the repository.
+ * <p>
+ * Patches are injected into this class and any attempted applications are recorded
+ * for later auditing.
+ * 
+ * @since 1.2
+ * @author Derek Hulley
+ */
+public class PatchServiceImpl implements PatchService
+{
+    private static Log logger = LogFactory.getLog(PatchServiceImpl.class);
+    
+    private DescriptorService descriptorService;
+    private PatchDaoService patchDaoService;
+    private List<Patch> patches;
+
+    public void setDescriptorService(DescriptorService descriptorService)
+    {
+        this.descriptorService = descriptorService;
+    }
+
+    public void setPatchDaoService(PatchDaoService patchDaoService)
+    {
+        this.patchDaoService = patchDaoService;
+    }
+
+    public void setPatches(List<Patch> patches)
+    {
+        this.patches = patches;
+    }
+    
+    public List<PatchInfo> getAppliedPatches()
+    {
+        // get all the persisted patches
+        List<AppliedPatch> appliedPatches = patchDaoService.getAppliedPatches();
+        List<PatchInfo> patchInfos = new ArrayList<PatchInfo>(appliedPatches.size());
+        for (AppliedPatch patch : appliedPatches)
+        {
+            PatchInfo patchInfo = new PatchInfo(patch);
+            patchInfos.add(patchInfo);
+        }
+        // done
+        if (logger.isDebugEnabled())
+        {
+            logger.debug("Retrieved list of " + patchInfos.size() + " applied patches: \n");
+        }
+        return patchInfos;
+    }
+    
+    public boolean applyOutstandingPatches()
+    {
+        // construct a map of all known patches by ID
+        Map<String, Patch> allPatchesById = new HashMap<String, Patch>(23);
+        for (Patch patch : patches)
+        {
+            allPatchesById.put(patch.getId(), patch);
+        }
+        // construct a list of executed patches by ID
+        Map<String, PatchInfo> appliedPatchInfosById = new HashMap<String, PatchInfo>(23);
+        List<PatchInfo> appliedPatches = getAppliedPatches();
+        for (PatchInfo patchInfo : appliedPatches)
+        {
+            // ignore unsuccessful attempts - we need to try them again
+            if (!patchInfo.getSucceeded())
+            {
+                continue;
+            }
+            appliedPatchInfosById.put(patchInfo.getId(), patchInfo);
+        }
+        // go through all the patches and apply them where necessary
+        boolean success = true;
+        for (Patch patch : allPatchesById.values())
+        {
+            // apply the patch
+            success = applyPatchAndDependencies(patch, appliedPatchInfosById);
+            if (!success)
+            {
+                // we failed to apply a patch or one of its dependencies - terminate
+                break;
+            }
+        }
+        // done
+        return success;
+    }
+    
+    /**
+     * Reentrant method that ensures that a patch and all its dependencies get applied.
+     * The process terminates on the first failure.
+     * 
+     * @param patchInfos all the executed patch data.  If there was a failure, then this
+     *      is the list of successful executions only.
+     * @param patch the patch (containing dependencies) to apply
+     * @param appliedPatchInfosById already applied patches
+     * @return Returns true if the patch and all its dependencies were successfully applied.
+     */
+    private boolean applyPatchAndDependencies(Patch patch, Map<String, PatchInfo> appliedPatchInfosById)
+    {
+        String id = patch.getId();
+        // check if it has already been done
+        PatchInfo patchInfo = appliedPatchInfosById.get(id); 
+        if (patchInfo != null && patchInfo.getSucceeded())
+        {
+            // this has already been done
+            return true;
+        }
+        
+        // ensure that dependencies have been done
+        List<Patch> dependencies = patch.getDependsOn();
+        for (Patch dependencyPatch : dependencies)
+        {
+            boolean success = applyPatchAndDependencies(dependencyPatch, appliedPatchInfosById);
+            if (!success)
+            {
+                // a patch failed to be applied
+                return false;
+            }
+        }
+        // all the dependencies were successful
+        patchInfo = applyPatch(patch);
+        if (!patchInfo.getSucceeded())
+        {
+            // this was a failure
+            return false;
+        }
+        else
+        {
+            // it was successful - add it to the map of successful patches
+            appliedPatchInfosById.put(id, patchInfo);
+            return true;
+        }
+    }
+    
+    private PatchInfo applyPatch(Patch patch)
+    {
+        // get the patch from the DAO
+        AppliedPatch appliedPatch = patchDaoService.getAppliedPatch(patch.getId());
+        if (appliedPatch != null && appliedPatch.getSucceeded())
+        {
+            // it has already been applied
+            PatchInfo patchInfo = new PatchInfo(appliedPatch);
+            // done
+            if (logger.isDebugEnabled())
+            {
+                logger.debug("Patch was already successfully applied: \n" +
+                        "   patch: " + patchInfo);
+            }
+            return patchInfo;
+        }
+        // the execution report
+        String report = null;
+        boolean success = false;
+        // first check whether the patch is relevant to the repo
+        Descriptor repo = descriptorService.getRepositoryDescriptor();
+        String versionLabel = repo.getVersionLabel();
+        if (versionLabel.compareTo(patch.getApplyAfterVersion()) >= 0)
+        {
+            // create a dummy report
+            StringBuilder sb = new StringBuilder(128);
+            sb.append("Patch ").append(patch.getId()).append(" was not relevant.");
+            report = sb.toString();
+            success = true;             // this succeeded because it didn't need to be applied
+        }
+        else
+        {
+            // perform actual execution
+            try
+            {
+                report = patch.apply();
+                success = true;
+            }
+            catch (PatchException e)
+            {
+                // failed
+                report = e.getMessage();
+                success = false;
+            }
+        }
+        // create a record for the execution
+        appliedPatch = patchDaoService.newAppliedPatch(patch.getId());
+        // fill in the record's details
+        appliedPatch.setDescription(patch.getDescription());
+        appliedPatch.setApplyAfterVersion(patch.getApplyAfterVersion());
+        appliedPatch.setSucceeded(success);
+        appliedPatch.setAppliedOnVersion(versionLabel);
+        appliedPatch.setAppliedOnDate(new Date());
+        appliedPatch.setReport(report);
+        // create the info for returning
+        PatchInfo patchInfo = new PatchInfo(appliedPatch);
+        // done
+        if (logger.isDebugEnabled())
+        {
+            logger.debug("Applied patch: \n" + patchInfo);
+        }
+        return patchInfo;
+    }
+}

source/java/org/alfresco/repo/admin/patch/PatchTest.java

@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+package org.alfresco.repo.admin.patch;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import junit.framework.TestCase;
+
+import org.alfresco.error.AlfrescoRuntimeException;
+import org.alfresco.service.cmr.admin.PatchException;
+import org.alfresco.service.cmr.admin.PatchInfo;
+import org.alfresco.service.transaction.TransactionService;
+import org.alfresco.util.ApplicationContextHelper;
+import org.springframework.context.ApplicationContext;
+
+/**
+ * @see org.alfresco.repo.admin.patch.Patch
+ * @see org.alfresco.repo.admin.patch.AbstractPatch
+ * @see org.alfresco.repo.admin.patch.PatchService
+ * 
+ * @author Derek Hulley
+ */
+public class PatchTest extends TestCase
+{
+    private static final ApplicationContext ctx = ApplicationContextHelper.getApplicationContext();
+    
+    private TransactionService transactionService;
+    private PatchService patchService;
+    private List<Patch> patches;
+    
+    public PatchTest(String name)
+    {
+        super(name);
+    }
+    
+    public void setUp() throws Exception
+    {
+        transactionService = (TransactionService) ctx.getBean("transactionComponent");
+        patchService = (PatchService) ctx.getBean("PatchService");
+        
+        // get the patches to play with
+        patches = new ArrayList<Patch>(2);
+        patches.add((Patch)ctx.getBean("patch.sample.02"));
+        patches.add((Patch)ctx.getBean("patch.sample.01"));
+        patchService.setPatches(patches);
+    }
+    
+    public void testSetup() throws Exception
+    {
+        assertNotNull(transactionService);
+        assertNotNull(patchService);
+    }
+    
+    public void testSimplePatchSuccess() throws Exception
+    {
+        Patch patch = new SamplePatch(false, transactionService);
+        String report = patch.apply();
+        // check that the report was generated
+        assertEquals("Patch report incorrect", SamplePatch.MSG_SUCCESS, report);
+    }
+    
+    public void testPatchReapplication()
+    {
+        // successfully apply a patch
+        Patch patch = new SamplePatch(false, transactionService);
+        patch.apply();
+        // check that the patch cannot be reapplied
+        try
+        {
+            patch.apply();
+            fail("AbstractPatch failed to prevent reapplication");
+        }
+        catch (AlfrescoRuntimeException e)
+        {
+            // expected
+        }
+        
+        // apply an unsuccessful patch
+        patch = new SamplePatch(true, transactionService);
+        try
+        {
+            patch.apply();
+            fail("Failed patch didn't throw PatchException");
+        }
+        catch (PatchException e)
+        {
+            // expected
+        }
+        // repeat
+        try
+        {
+            patch.apply();
+            fail("Reapplication of failed patch didn't throw PatchException");
+        }
+        catch (PatchException e)
+        {
+            // expected
+        }
+    }
+    
+    public void testApplyOutstandingPatches() throws Exception
+    {
+        // apply outstanding patches
+        boolean success = patchService.applyOutstandingPatches();
+        assertTrue(success);
+        // get applied patches
+        List<PatchInfo> patchInfos = patchService.getAppliedPatches();
+        // check that the patch application was recorded
+        boolean found01 = false;
+        boolean found02 = false;
+        for (PatchInfo patchInfo : patchInfos)
+        {
+            if (patchInfo.getId().equals("Sample01"))
+            {
+                found01 = true;
+                assertTrue("Patch info didn't indicate success: " + patchInfo, patchInfo.getSucceeded());
+            }
+            else if (patchInfo.getId().equals("Sample02"))
+            {
+                found02 = true;
+                assertTrue("Patch info didn't indicate success: " + patchInfo, patchInfo.getSucceeded());
+            } 
+        }
+        assertTrue("Sample 01 not in list of applied patches", found01);
+        assertTrue("Sample 02 not in list of applied patches", found02);
+    }
+}

source/java/org/alfresco/repo/admin/patch/SamplePatch.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+package org.alfresco.repo.admin.patch;
+
+import org.alfresco.service.transaction.TransactionService;
+
+public class SamplePatch extends AbstractPatch
+{
+    public static final String MSG_SUCCESS = "SamplePatch applied successfully";
+    public static final String MSG_FAILURE = "SamplePatch failed to apply";
+    
+    private boolean mustFail;
+
+    /**
+     * Default constructor for Spring config
+     */
+    public SamplePatch()
+    {
+    }
+    
+    /**
+     * Helper constructor for some tests.  Default properties are set automatically.
+     * 
+     * @param mustFail true if this instance must always fail to apply
+     */
+    /* protected */ SamplePatch(boolean mustFail, TransactionService transactionService)
+    {
+        this.mustFail = mustFail;
+        setTransactionService(transactionService);
+        setId("SamplePatch");
+        setDescription("This is a sample patch");
+        setApplyAfterVersion("1.0.0");
+    }
+    
+    /**
+     * Does nothing
+     * 
+     * @return Returns a success or failure message dependent on the constructor used
+     */
+    @Override
+    protected String applyInternal() throws Exception
+    {
+        if (mustFail)
+        {
+            throw new Exception(MSG_FAILURE);
+        }
+        else
+        {
+            return MSG_SUCCESS;
+        }
+    }
+}

source/java/org/alfresco/repo/admin/patch/hibernate/HibernatePatchDaoServiceImpl.java

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+package org.alfresco.repo.admin.patch.hibernate;
+
+import java.util.List;
+
+import org.alfresco.error.AlfrescoRuntimeException;
+import org.alfresco.repo.admin.patch.PatchDaoService;
+import org.alfresco.repo.domain.AppliedPatch;
+import org.alfresco.repo.domain.hibernate.AppliedPatchImpl;
+import org.hibernate.Query;
+import org.hibernate.Session;
+import org.springframework.orm.hibernate3.HibernateCallback;
+import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
+
+/**
+ * Hibernate-specific implementation for managing patch persistence.
+ * 
+ * @since 1.2
+ * @author Derek Hulley
+ */
+public class HibernatePatchDaoServiceImpl extends HibernateDaoSupport implements PatchDaoService
+{
+    public static final String QUERY_GET_ALL_APPLIED_PATCHES = "patch.GetAllAppliedPatches";
+
+    public AppliedPatch newAppliedPatch(String id)
+    {
+        // check for existence
+        AppliedPatch existing = getAppliedPatch(id);
+        if (existing != null)
+        {
+            throw new AlfrescoRuntimeException("An applied patch already exists: \n" +
+                    "   id: " + id);
+        }
+        // construct a new one
+        AppliedPatchImpl patch = new AppliedPatchImpl();
+        patch.setId(id);
+        // save this in hibernate
+        getHibernateTemplate().save(patch);
+        // done
+        return patch;
+    }
+
+    public AppliedPatch getAppliedPatch(String id)
+    {
+        AppliedPatch patch = (AppliedPatch) getHibernateTemplate().get(AppliedPatchImpl.class, id);
+        // done
+        return patch;
+    }
+
+    /**
+     * @see #QUERY_GET_ALL_APPLIED_PATCHES
+     */
+    @SuppressWarnings("unchecked")
+    public List<AppliedPatch> getAppliedPatches()
+    {
+        HibernateCallback callback = new HibernateCallback()
+        {
+            public Object doInHibernate(Session session)
+            {
+                Query query = session.getNamedQuery(HibernatePatchDaoServiceImpl.QUERY_GET_ALL_APPLIED_PATCHES);
+                return query.list();
+            }
+        };
+        List<AppliedPatch> queryResults = (List) getHibernateTemplate().execute(callback);
+        // done
+        return queryResults;
+    }
+}

source/java/org/alfresco/repo/domain/AppliedPatch.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+package org.alfresco.repo.domain;
+
+import java.util.Date;
+
+/**
+ * Interface for persistent patch application information.
+ * 
+ * @author Derek Hulley
+ */
+public interface AppliedPatch
+{
+    public String getId();
+    public void setId(String id);
+
+    public String getDescription();
+    public void setDescription(String description);
+    
+    public String getApplyAfterVersion();
+    public void setApplyAfterVersion(String version);
+    
+    public boolean getSucceeded();
+    public void setSucceeded(boolean succeeded);
+    
+    public String getAppliedOnVersion();
+    public void setAppliedOnVersion(String version);
+    
+    public Date getAppliedOnDate();
+    public void setAppliedOnDate(Date date);
+    
+    public String getReport();
+    public void setReport(String report);
+}

source/java/org/alfresco/repo/domain/hibernate/AppliedPatch.hbm.xml

@@ -0,0 +1,33 @@
+<?xml version='1.0' encoding='UTF-8'?>
+
+<!DOCTYPE hibernate-mapping PUBLIC
+    '-//Hibernate/Hibernate Mapping DTD 3.0//EN' 
+    'http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd'>
+
+<hibernate-mapping>
+
+   <class
+         name="org.alfresco.repo.domain.hibernate.AppliedPatchImpl"
+         proxy="org.alfresco.repo.domain.AppliedPatch"
+         table="applied_patch"
+         dynamic-update="false"
+         dynamic-insert="false"
+         select-before-update="false"
+         optimistic-lock="version" >
+      <id column="id" length="32" name="id" type="string" />
+      <property name="description" column="description" type="string" length="1024" />
+      <property name="applyAfterVersion" column="apply_after_version" type="string" length="10" />
+      <property name="succeeded" column="succeeded" type="boolean" />
+      <property name="appliedOnVersion" column="applied_on_version" type="string" length="10" />
+      <property name="appliedOnDate" column="applied_on_date" type="timestamp" />
+      <property name="report" column="report" type="string" length="1024" />
+   </class>
+
+   <query name="patch.GetAllAppliedPatches">
+      select
+         appliedPatch
+      from
+         org.alfresco.repo.domain.hibernate.AppliedPatchImpl as appliedPatch
+   </query>
+   
+</hibernate-mapping>

source/java/org/alfresco/repo/domain/hibernate/AppliedPatchImpl.java

@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+package org.alfresco.repo.domain.hibernate;
+
+import java.util.Date;
+
+import org.alfresco.repo.domain.AppliedPatch;
+
+/**
+ * Hibernate-specific implementation of the persistent object.
+ * 
+ * @author Derek Hulley
+ */
+public class AppliedPatchImpl implements AppliedPatch
+{
+    private String id;
+    private String description;
+    private String applyAfterVersion;
+    private boolean succeeded;
+    private String appliedOnVersion;
+    private Date appliedOnDate;
+    private String report;
+
+    public String getId()
+    {
+        return id;
+    }
+    public void setId(String id)
+    {
+        this.id = id;
+    }
+    
+    public String getDescription()
+    {
+        return description;
+    }
+    public void setDescription(String description)
+    {
+        if (description.length() > 1024)
+        {
+            // truncate as necessary
+            description = (description.substring(0, 1020) + "...");
+        }
+        this.description = description;
+    }
+    
+    public String getAppliedOnVersion()
+    {
+        return appliedOnVersion;
+    }
+    public void setAppliedOnVersion(String appliedOnVersion)
+    {
+        this.appliedOnVersion = appliedOnVersion;
+    }
+    
+    public boolean getSucceeded()
+    {
+        return succeeded;
+    }
+    public void setSucceeded(boolean succeeded)
+    {
+        this.succeeded = succeeded;
+    }
+
+    public String getApplyAfterVersion()
+    {
+        return applyAfterVersion;
+    }
+    public void setApplyAfterVersion(String applyAfterVersion)
+    {
+        this.applyAfterVersion = applyAfterVersion;
+    }
+    
+    public Date getAppliedOnDate()
+    {
+        return appliedOnDate;
+    }
+    public void setAppliedOnDate(Date appliedOnDate)
+    {
+        this.appliedOnDate = appliedOnDate;
+    }
+    
+    public String getReport()
+    {
+        return report;
+    }
+    public void setReport(String report)
+    {
+        if (report.length() > 1024)
+        {
+            // truncate as necessary
+            report = (report.substring(0, 1020) + "...");
+        }
+        this.report = report;
+    }
+}

source/java/org/alfresco/repo/domain/hibernate/NodeImpl.java

@@ -32,7 +32,6 @@ import org.alfresco.repo.domain.PropertyValue;
 import org.alfresco.repo.domain.Store;
 import org.alfresco.service.cmr.repository.NodeRef;
 import org.alfresco.service.namespace.QName;
-import org.hibernate.mapping.Bag;
 
 /**
  * Bean containing all the persistence data representing a <b>node</b>.
@@ -136,6 +135,7 @@ public class NodeImpl implements Node
     /**
      * For Hibernate use
      */
+    @SuppressWarnings("unused")
     private void setAspects(Set<QName> aspects)
     {
         this.aspects = aspects;
@@ -149,6 +149,7 @@ public class NodeImpl implements Node
     /**
      * For Hibernate use
      */
+    @SuppressWarnings("unused")
     private void setSourceNodeAssocs(Collection<NodeAssoc> sourceNodeAssocs)
     {
         this.sourceNodeAssocs = sourceNodeAssocs;
@@ -162,6 +163,7 @@ public class NodeImpl implements Node
     /**
      * For Hibernate use
      */
+    @SuppressWarnings("unused")
     private void setTargetNodeAssocs(Collection<NodeAssoc> targetNodeAssocs)
     {
         this.targetNodeAssocs = targetNodeAssocs;
@@ -175,6 +177,7 @@ public class NodeImpl implements Node
     /**
      * For Hibernate use
      */
+    @SuppressWarnings("unused")
     private void setParentAssocs(Collection<ChildAssoc> parentAssocs)
     {
         this.parentAssocs = parentAssocs;
@@ -188,6 +191,7 @@ public class NodeImpl implements Node
     /**
      * For Hibernate use
      */
+    @SuppressWarnings("unused")
     private void setChildAssocs(Collection<ChildAssoc> childAssocs)
     {
         this.childAssocs = childAssocs;
@@ -201,6 +205,7 @@ public class NodeImpl implements Node
     /**
      * For Hibernate use
      */
+    @SuppressWarnings("unused")
     private void setProperties(Map<QName, PropertyValue> properties)
     {
         this.properties = properties;