diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/condition/ResourcesMatch.java')
-rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/condition/ResourcesMatch.java | 93 |
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 index 00000000..29e3e800 --- /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; + } +} |