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https://github.com/Alfresco/alfresco-community-repo.git
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Merged 5.1.N (5.1.2) to 5.2.N (5.2.1)
125605 rmunteanu: Merged 5.1.1 (5.1.1) to 5.1.N (5.1.2)
125498 slanglois: MNT-16155 Update source headers - remove svn:eol-style property on Java and JSP source files
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/DEV/5.2.N/root@125783 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Raluca Munteanu
@@ -1,197 +1,197 @@
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package org.alfresco.repo.content.replication;
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import java.util.Date;
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import java.util.List;
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import java.util.concurrent.locks.Lock;
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import java.util.concurrent.locks.ReadWriteLock;
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import java.util.concurrent.locks.ReentrantReadWriteLock;
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import org.alfresco.error.AlfrescoRuntimeException;
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import org.alfresco.repo.content.AbstractContentStore;
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import org.alfresco.repo.content.ContentContext;
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import org.alfresco.repo.content.ContentStore;
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import org.alfresco.repo.content.caching.CachingContentStore;
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import org.alfresco.service.cmr.repository.ContentIOException;
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import org.alfresco.service.cmr.repository.ContentReader;
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import org.alfresco.service.cmr.repository.ContentWriter;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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/**
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* </h1><u>Aggregating Content Store</u></h1>
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* <p>
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* A content store implementation that aggregates a set of stores. Content is not
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* persisted by this store, but rather it relies on any number of
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* child {@link org.alfresco.repo.content.ContentStore stores} to provide access
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* to content readers and writers.
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* <p>
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* The order in which the stores appear in the list of stores participating is
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* important. The first store in the list is known as the <i>primary store</i>.
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<p>
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* Content is written to the primary store only. The other stores are
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* only used to retrieve content and the primary store is not updated with
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* the content.
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*
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* @author Derek Hulley
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* @author Mark Rogers
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* @see CachingContentStore
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*/
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public class AggregatingContentStore extends AbstractContentStore
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{
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private static Log logger = LogFactory.getLog(AggregatingContentStore.class);
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private ContentStore primaryStore;
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private List<ContentStore> secondaryStores;
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private Lock readLock;
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private Lock writeLock;
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/**
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* Default constructor
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*/
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public AggregatingContentStore()
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{
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ReadWriteLock storeLock = new ReentrantReadWriteLock();
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readLock = storeLock.readLock();
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writeLock = storeLock.writeLock();
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}
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/**
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* Set the primary store that content will be replicated to or from
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*
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* @param primaryStore the primary content store
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*/
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public void setPrimaryStore(ContentStore primaryStore)
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{
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this.primaryStore = primaryStore;
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}
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/**
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* Set the secondary stores that this component will replicate to or from
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*
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* @param secondaryStores a list of stores to replicate to or from
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*/
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public void setSecondaryStores(List<ContentStore> secondaryStores)
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{
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this.secondaryStores = secondaryStores;
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}
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/**
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* @return Returns <tt>true</tt> if the primary store supports writing
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*/
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public boolean isWriteSupported()
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{
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return primaryStore.isWriteSupported();
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}
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/**
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* @return Returns <tt>true</tt> if the primary store supports the URL
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*/
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@Override
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public boolean isContentUrlSupported(String contentUrl)
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{
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return primaryStore.isContentUrlSupported(contentUrl);
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}
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/**
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* @return Return the primary store root location
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*/
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@Override
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public String getRootLocation()
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{
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return primaryStore.getRootLocation();
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}
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/**
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* Forwards the call directly to the first store in the list of stores.
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*/
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public ContentReader getReader(String contentUrl) throws ContentIOException
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{
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if (primaryStore == null)
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{
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throw new AlfrescoRuntimeException("ReplicatingContentStore not initialised");
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}
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// get a read lock so that we are sure that no replication is underway
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readLock.lock();
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try
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{
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// get a reader from the primary store
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ContentReader primaryReader = primaryStore.getReader(contentUrl);
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// give it straight back if the content is there
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if (primaryReader.exists())
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{
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return primaryReader;
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}
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// the content is not in the primary reader so we have to go looking for it
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ContentReader secondaryContentReader = null;
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for (ContentStore store : secondaryStores)
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{
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ContentReader reader = store.getReader(contentUrl);
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if (reader.exists())
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{
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// found the content in a secondary store
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return reader;
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}
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}
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return primaryReader;
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}
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finally
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{
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readLock.unlock();
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}
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}
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public ContentWriter getWriter(ContentContext ctx)
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{
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// get the writer
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ContentWriter writer = primaryStore.getWriter(ctx);
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return writer;
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}
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/**
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* Performs a delete on the local store and if outbound replication is on, propogates
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* the delete to the other stores too.
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*
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* @return Returns the value returned by the delete on the primary store.
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*/
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public boolean delete(String contentUrl) throws ContentIOException
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{
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// delete on the primary store
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boolean deleted = primaryStore.delete(contentUrl);
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if (logger.isDebugEnabled())
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{
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logger.debug("Deleted content for URL: " + contentUrl);
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}
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return deleted;
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}
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/**
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* Iterates over results as given by the primary store and all secondary stores. It is up to the handler to eliminate
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* duplicates that will occur between the primary and secondary stores.
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*/
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@SuppressWarnings("deprecation")
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public void getUrls(Date createdAfter, Date createdBefore, ContentUrlHandler handler) throws ContentIOException
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{
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// add in URLs from primary store
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primaryStore.getUrls(createdAfter, createdBefore, handler);
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// add in URLs from secondary stores (they are visible for reads)
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for (ContentStore secondaryStore : secondaryStores)
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{
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secondaryStore.getUrls(createdAfter, createdBefore, handler);
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}
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// done
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if (logger.isDebugEnabled())
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{
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logger.debug("Iterated over content URLs: \n" +
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" created after: " + createdAfter + "\n" +
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" created before: " + createdBefore);
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}
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}
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}
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package org.alfresco.repo.content.replication;
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import java.util.Date;
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import java.util.List;
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import java.util.concurrent.locks.Lock;
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import java.util.concurrent.locks.ReadWriteLock;
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import java.util.concurrent.locks.ReentrantReadWriteLock;
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import org.alfresco.error.AlfrescoRuntimeException;
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import org.alfresco.repo.content.AbstractContentStore;
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import org.alfresco.repo.content.ContentContext;
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import org.alfresco.repo.content.ContentStore;
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import org.alfresco.repo.content.caching.CachingContentStore;
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import org.alfresco.service.cmr.repository.ContentIOException;
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import org.alfresco.service.cmr.repository.ContentReader;
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import org.alfresco.service.cmr.repository.ContentWriter;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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/**
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* </h1><u>Aggregating Content Store</u></h1>
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* <p>
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* A content store implementation that aggregates a set of stores. Content is not
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* persisted by this store, but rather it relies on any number of
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* child {@link org.alfresco.repo.content.ContentStore stores} to provide access
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* to content readers and writers.
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* <p>
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* The order in which the stores appear in the list of stores participating is
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* important. The first store in the list is known as the <i>primary store</i>.
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<p>
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* Content is written to the primary store only. The other stores are
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* only used to retrieve content and the primary store is not updated with
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* the content.
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*
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* @author Derek Hulley
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* @author Mark Rogers
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* @see CachingContentStore
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*/
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public class AggregatingContentStore extends AbstractContentStore
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{
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private static Log logger = LogFactory.getLog(AggregatingContentStore.class);
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private ContentStore primaryStore;
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private List<ContentStore> secondaryStores;
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private Lock readLock;
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private Lock writeLock;
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/**
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* Default constructor
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*/
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public AggregatingContentStore()
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{
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ReadWriteLock storeLock = new ReentrantReadWriteLock();
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readLock = storeLock.readLock();
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writeLock = storeLock.writeLock();
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}
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/**
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* Set the primary store that content will be replicated to or from
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*
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* @param primaryStore the primary content store
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*/
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public void setPrimaryStore(ContentStore primaryStore)
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{
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this.primaryStore = primaryStore;
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}
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/**
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* Set the secondary stores that this component will replicate to or from
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*
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* @param secondaryStores a list of stores to replicate to or from
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*/
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public void setSecondaryStores(List<ContentStore> secondaryStores)
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{
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this.secondaryStores = secondaryStores;
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}
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/**
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* @return Returns <tt>true</tt> if the primary store supports writing
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*/
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public boolean isWriteSupported()
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{
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return primaryStore.isWriteSupported();
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}
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/**
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* @return Returns <tt>true</tt> if the primary store supports the URL
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*/
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@Override
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public boolean isContentUrlSupported(String contentUrl)
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{
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return primaryStore.isContentUrlSupported(contentUrl);
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}
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/**
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* @return Return the primary store root location
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*/
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@Override
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public String getRootLocation()
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{
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return primaryStore.getRootLocation();
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}
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/**
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* Forwards the call directly to the first store in the list of stores.
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*/
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public ContentReader getReader(String contentUrl) throws ContentIOException
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{
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if (primaryStore == null)
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{
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throw new AlfrescoRuntimeException("ReplicatingContentStore not initialised");
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}
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// get a read lock so that we are sure that no replication is underway
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readLock.lock();
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try
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{
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// get a reader from the primary store
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ContentReader primaryReader = primaryStore.getReader(contentUrl);
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// give it straight back if the content is there
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if (primaryReader.exists())
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{
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return primaryReader;
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}
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// the content is not in the primary reader so we have to go looking for it
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ContentReader secondaryContentReader = null;
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for (ContentStore store : secondaryStores)
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{
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ContentReader reader = store.getReader(contentUrl);
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if (reader.exists())
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{
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// found the content in a secondary store
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return reader;
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}
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}
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return primaryReader;
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}
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finally
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{
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readLock.unlock();
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}
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}
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public ContentWriter getWriter(ContentContext ctx)
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{
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// get the writer
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ContentWriter writer = primaryStore.getWriter(ctx);
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return writer;
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}
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/**
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* Performs a delete on the local store and if outbound replication is on, propogates
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* the delete to the other stores too.
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*
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* @return Returns the value returned by the delete on the primary store.
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*/
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public boolean delete(String contentUrl) throws ContentIOException
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{
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// delete on the primary store
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boolean deleted = primaryStore.delete(contentUrl);
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if (logger.isDebugEnabled())
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{
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logger.debug("Deleted content for URL: " + contentUrl);
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}
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return deleted;
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}
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/**
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* Iterates over results as given by the primary store and all secondary stores. It is up to the handler to eliminate
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* duplicates that will occur between the primary and secondary stores.
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*/
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@SuppressWarnings("deprecation")
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public void getUrls(Date createdAfter, Date createdBefore, ContentUrlHandler handler) throws ContentIOException
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{
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// add in URLs from primary store
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primaryStore.getUrls(createdAfter, createdBefore, handler);
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// add in URLs from secondary stores (they are visible for reads)
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for (ContentStore secondaryStore : secondaryStores)
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{
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secondaryStore.getUrls(createdAfter, createdBefore, handler);
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}
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// done
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if (logger.isDebugEnabled())
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{
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logger.debug("Iterated over content URLs: \n" +
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" created after: " + createdAfter + "\n" +
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" created before: " + createdBefore);
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}
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}
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}
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