1 files changed, 93 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/condition/ResourcesMatch.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/condition/ResourcesMatch.java
new file mode 100644
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--- /dev/null
+++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/condition/ResourcesMatch.java
@@ -0,0 +1,93 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  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.apache.tools.ant.taskdefs.condition;
+
+import java.io.IOException;
+import java.util.Iterator;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.types.Resource;
+import org.apache.tools.ant.types.ResourceCollection;
+import org.apache.tools.ant.types.resources.Union;
+import org.apache.tools.ant.util.ResourceUtils;
+
+/**
+ * Compares resources for equality based on size and content.
+ * All resources specified must match; no resource collections
+ * specified is an error condition; if resource collections are
+ * specified, but yield fewer than two elements, the condition
+ * evaluates to <code>true</code>.
+ * @since Ant 1.7
+ */
+public class ResourcesMatch implements Condition {
+
+    private Union resources = null;
+    private boolean asText = false;
+
+    /**
+     * Set whether to treat resources as if they were text files,
+     * ignoring line endings.
+     * @param asText whether to ignore line endings.
+     */
+    public void setAsText(boolean asText) {
+        this.asText = asText;
+    }
+
+    /**
+     * Add a resource collection.
+     * @param rc the resource collection to add.
+     */
+    public void add(ResourceCollection rc) {
+        if (rc == null) {
+            return;
+        }
+        resources = resources == null ? new Union() : resources;
+        resources.add(rc);
+    }
+
+    /**
+     * Verify that all resources match.
+     * @return true if all resources are equal.
+     * @exception BuildException if there is an error.
+     */
+    public boolean eval() throws BuildException {
+        if (resources == null) {
+            throw new BuildException(
+                "You must specify one or more nested resource collections");
+        }
+        if (resources.size() > 1) {
+            Iterator<Resource> i = resources.iterator();
+            Resource r1 = (Resource) i.next();
+            Resource r2 = null;
+
+            while (i.hasNext()) {
+                r2 = (Resource) i.next();
+                try {
+                    if (!ResourceUtils.contentEquals(r1, r2, asText)) {
+                        return false;
+                    }
+                } catch (IOException ioe) {
+                    throw new BuildException("when comparing resources "
+                        + r1.toString() + " and " + r2.toString(), ioe);
+                }
+                r1 = r2;
+            }
+        }
+        return true;
+    }
+}