RM-2028 Create util method to validate classification fields.

Also change the freemarker script to use the built-in JSON escaping.

+review RM-14

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/modules/recordsmanagement/HEAD@101242 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

rm-server/config/alfresco/templates/webscripts/org/alfresco/rma/classification/reasons.get.json.ftl

@@ -1,4 +1,3 @@
-<#escape x as jsonUtils.encodeJSONString(x)>
 {
    "data":
    {
@@ -6,11 +5,10 @@
       [
          <#list reasons as reason>
          {
-            "id": "<#noescape>${reason.id}</#noescape>",
-            "displayLabel": "<#noescape>${reason.displayLabel}</#noescape>"
+            "id": "${reason.id?json_string}",
+            "displayLabel": "${reason.displayLabel?json_string}"
          }<#if reason_has_next>,</#if>
          </#list>
       ]
    }
 }
-</#escape>

rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/classification/ClassificationLevel.java

@@ -18,10 +18,11 @@
  */
 package org.alfresco.module.org_alfresco_module_rm.classification;
 
-import org.springframework.extensions.surf.util.I18NUtil;
-
 import java.io.Serializable;
 
+import org.alfresco.module.org_alfresco_module_rm.util.RMParameterCheck;
+import org.springframework.extensions.surf.util.I18NUtil;
+
 /**
  * This class is a POJO data type for a Classification Level.
  *
@@ -35,10 +36,8 @@ public final class ClassificationLevel implements Serializable
 
     public ClassificationLevel(final String id, final String displayLabelKey)
     {
-        if (id == null || id.trim().equals(""))
-        {
-            throw new IllegalArgumentException("Illegal id: '" + id + "'");
-        }
+        RMParameterCheck.checkNotBlank("id", id);
+        RMParameterCheck.checkNotBlank("displayLabelKey", displayLabelKey);
         this.id              = id;
         this.displayLabelKey = displayLabelKey;
     }

rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/classification/ClassificationReason.java

@@ -21,8 +21,10 @@ package org.alfresco.module.org_alfresco_module_rm.classification;
 
 import java.io.Serializable;
 
+import org.alfresco.module.org_alfresco_module_rm.util.RMParameterCheck;
 import org.springframework.extensions.surf.util.I18NUtil;
 
+
 /**
  * This class is a POJO data type for a classification reason.
  *
@@ -43,8 +45,8 @@ public final class ClassificationReason implements Serializable
      */
     public ClassificationReason(final String id, final String displayLabelKey)
     {
-        if (id == null || id.trim().equals("")) { throw new IllegalArgumentException("Illegal id: '" + id + "'"); }
-        if (displayLabelKey == null || displayLabelKey.trim().equals("")) { throw new IllegalArgumentException("Illegal displayLabelKey: '" + displayLabelKey + "'"); }
+        RMParameterCheck.checkNotBlank("id", id);
+        RMParameterCheck.checkNotBlank("displayLabelKey", displayLabelKey);
         this.id = id;
         this.displayLabelKey = displayLabelKey;
     }

rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/util/RMParameterCheck.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2005-2015 Alfresco Software Limited.
+ *
+ * This file is part of Alfresco
+ *
+ * Alfresco is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Alfresco is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.alfresco.module.org_alfresco_module_rm.util;
+
+import org.apache.commons.lang.StringUtils;
+
+/**
+ * Utility class that contains validation not present in {@link org.alfresco.util.ParameterCheck}.
+ * 
+ * @author tpage
+ */
+public class RMParameterCheck
+{
+    /**
+     * Checks that the string parameter with the given name is not blank i.e. it is not null, zero length or entirely
+     * composed of whitespace.
+     * 
+     * @param strParamName Name of parameter to check
+     * @param strParamValue Value of the parameter to check
+     */
+    public static void checkNotBlank(final String strParamName, final String strParamValue)
+                throws IllegalArgumentException
+    {
+        if (StringUtils.isBlank(strParamValue)) { throw new IllegalArgumentException(strParamName
+                    + " is a mandatory parameter"); }
+    }
+}

rm-server/unit-test/java/org/alfresco/module/org_alfresco_module_rm/test/util/ExceptionUtils.java

@@ -46,7 +46,7 @@ public class ExceptionUtils
 
         @Override public String toString()
         {
-            return String.join("Expected ", expected.getSimpleName(), " but ",
+            return String.join("", "Expected ", expected.getSimpleName(), " but ",
                                actual.getClass().getSimpleName(), " was thrown.");
         }
     }
@@ -64,7 +64,7 @@ public class ExceptionUtils
         public Class<? extends Throwable> getExpected() { return this.expected; }
         @Override public String toString()
         {
-            return String.join("Expected ", expected.getSimpleName(), " but nothing was thrown.");
+            return String.join("", "Expected ", expected.getSimpleName(), " but nothing was thrown.");
         }
     }
 

rm-server/unit-test/java/org/alfresco/module/org_alfresco_module_rm/util/RMParameterCheckTest.java

@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2005-2015 Alfresco Software Limited.
+ *
+ * This file is part of Alfresco
+ *
+ * Alfresco is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Alfresco is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.alfresco.module.org_alfresco_module_rm.util;
+
+import org.alfresco.module.org_alfresco_module_rm.test.util.ExceptionUtils;
+import org.junit.Test;
+
+/**
+ * Unit tests for the {@link RMParameter} utility class.
+ * 
+ * @author tpage
+ */
+public class RMParameterCheckTest
+{
+    @Test
+    public void checkNotBlank()
+    {
+        // Check that supplying null causes an exception.
+        ExceptionUtils.intercept(IllegalArgumentException.class, () -> {
+            RMParameterCheck.checkNotBlank("name", null);
+            return null;
+        });
+
+        // Check that supplying an empty string causes an exception.
+        ExceptionUtils.intercept(IllegalArgumentException.class, () -> {
+            RMParameterCheck.checkNotBlank("name", "");
+            return null;
+        });
+
+        // Check that supplying a whitespace only string causes an exception.
+        ExceptionUtils.intercept(IllegalArgumentException.class, () -> {
+            RMParameterCheck.checkNotBlank("name", "\n\r \t");
+            return null;
+        });
+
+        // Check that supplying a mainly whitespace string throws no exceptions.
+        RMParameterCheck.checkNotBlank("name", "\n\r *\t");
+    }
+}