moved library validation guts to common plugin

3 files changed, 94 insertions, 0 deletions

diff --git a/common/plugins/org.eclipse.jpt.common.core/property_files/jpt_common_core.properties b/common/plugins/org.eclipse.jpt.common.core/property_files/jpt_common_core.properties
index 3db352b1b7..e474609500 100644
--- a/common/plugins/org.eclipse.jpt.common.core/property_files/jpt_common_core.properties
+++ b/common/plugins/org.eclipse.jpt.common.core/property_files/jpt_common_core.properties
@@ -17,6 +17,7 @@ REGISTRY_DUPLICATE=An extension of ''{0}'' with the ''{1}'' value of ''{2}'' is
 REGISTRY_FAILED_CLASS_LOAD=Unable to load the class ''{0}'' declared for the extension point ''{1}'' in the plug-in ''{2}''.
 REGISTRY_FAILED_INTERFACE_ASSIGNMENT=Unable to assign the class ''{0}'' declared for the extension point ''{1}'' in the plug-in ''{2}'' to the interface ''{3}''.
 REGISTRY_FAILED_INSTANTIATION=Unable to instantiate the class ''{0}'' declared for the extension point ''{1}'' in the plug-in ''{2}''.
+USER_LIBRARY_VALIDATOR__CLASS_NOT_FOUND=The class ''{0}'' is required to be in the selected libraries.
 VALIDATE_CONTAINER_NOT_SPECIFIED=Parent folder must be specified
 VALIDATE_FILE_NAME_NOT_SPECIFIED=File name must be specified
 VALIDATE_FILE_ALREADY_EXISTS=File already exist
\ No newline at end of file
diff --git a/common/plugins/org.eclipse.jpt.common.core/src/org/eclipse/jpt/common/core/internal/JptCommonCoreMessages.java b/common/plugins/org.eclipse.jpt.common.core/src/org/eclipse/jpt/common/core/internal/JptCommonCoreMessages.java
index 3b43e56034..5a7511d6e9 100644
--- a/common/plugins/org.eclipse.jpt.common.core/src/org/eclipse/jpt/common/core/internal/JptCommonCoreMessages.java
+++ b/common/plugins/org.eclipse.jpt.common.core/src/org/eclipse/jpt/common/core/internal/JptCommonCoreMessages.java
@@ -27,6 +27,7 @@ public class JptCommonCoreMessages {
 	public static String REGISTRY_FAILED_CLASS_LOAD;
 	public static String REGISTRY_FAILED_INTERFACE_ASSIGNMENT;
 	public static String REGISTRY_FAILED_INSTANTIATION;
+	public static String USER_LIBRARY_VALIDATOR__CLASS_NOT_FOUND;;
 	public static String VALIDATE_CONTAINER_NOT_SPECIFIED;
 	public static String VALIDATE_FILE_NAME_NOT_SPECIFIED;
 	public static String VALIDATE_FILE_ALREADY_EXISTS;
diff --git a/common/plugins/org.eclipse.jpt.common.core/src/org/eclipse/jpt/common/core/internal/libval/LibValUtil.java b/common/plugins/org.eclipse.jpt.common.core/src/org/eclipse/jpt/common/core/internal/libval/LibValUtil.java
new file mode 100644
index 0000000000..34afb0c83b
--- /dev/null
+++ b/common/plugins/org.eclipse.jpt.common.core/src/org/eclipse/jpt/common/core/internal/libval/LibValUtil.java
@@ -0,0 +1,92 @@
+/*******************************************************************************
+ *  Copyright (c) 2011  Oracle. All rights reserved.
+ *  This program and the accompanying materials are made available under the
+ *  terms of the Eclipse Public License v1.0, which accompanies this distribution
+ *  and is available at http://www.eclipse.org/legal/epl-v10.html
+ *  
+ *  Contributors: 
+ *  	Oracle - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jpt.common.core.internal.libval;
+
+import static org.eclipse.jst.common.project.facet.core.internal.FacetedProjectFrameworkJavaPlugin.PLUGIN_ID;
+import java.io.File;
+import java.io.IOException;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.jpt.common.core.internal.JptCommonCoreMessages;
+import org.eclipse.osgi.util.NLS;
+
+
+public class LibValUtil {
+	
+	public static IStatus validate(Iterable<IPath> libraryPaths, Set<String> classNames) {
+		Set<String> classFileNames = new HashSet<String>();
+		Map<String,String> classFileNameToClassName = new HashMap<String,String>();
+		for (String className : classNames) {
+			String classFileName = className.replace('.', '/') + ".class"; //$NON-NLS-1$
+			classFileNames.add(classFileName);
+			classFileNameToClassName.put(classFileName, className);
+		}
+		
+		final Map<String,Integer> classAppearanceCounts = new HashMap<String,Integer>();
+		
+		for (String classFileName : classFileNames) {
+			classAppearanceCounts.put(classFileName, 0);
+		}
+		
+		for (IPath libraryPath : libraryPaths) {
+			final File file = libraryPath.toFile();
+			
+			if (file.exists()) {
+				ZipFile zip = null;
+				
+				try {
+					zip = new ZipFile(file);
+					
+					for (Enumeration<? extends ZipEntry> itr = zip.entries(); itr.hasMoreElements(); ) {
+						final ZipEntry zipEntry = itr.nextElement();
+						final String name = zipEntry.getName();
+						
+						Integer count = classAppearanceCounts.get(name);
+						
+						if (count != null) {
+							classAppearanceCounts.put(name, count + 1);
+						}
+					}
+				}
+				catch (IOException e) {}
+				finally {
+					if (zip != null) {
+						try {
+							zip.close();
+						}
+						catch (IOException e) {}
+					}
+				}
+			}
+		}
+		
+		for (Map.Entry<String,Integer> entry : classAppearanceCounts.entrySet()) {
+			final int count = entry.getValue();
+			
+			if (count == 0) {
+				final String classFileName = entry.getKey();
+				final String className = classFileNameToClassName.get(classFileName);
+				final String message = 
+						NLS.bind(JptCommonCoreMessages.USER_LIBRARY_VALIDATOR__CLASS_NOT_FOUND, className);
+				return new Status(IStatus.ERROR, PLUGIN_ID, message);
+			}
+		}
+		
+		return Status.OK_STATUS;
+	}
+}