01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: *
17: */
18: package org.apache.tools.ant.types.resources.comparators;
19:
20: import java.io.IOException;
21:
22: import org.apache.tools.ant.BuildException;
23: import org.apache.tools.ant.types.Resource;
24: import org.apache.tools.ant.util.ResourceUtils;
25:
26: /**
27: * Compares Resources by content.
28: * @since Ant 1.7
29: */
30: public class Content extends ResourceComparator {
31:
32: private boolean binary = true;
33:
34: /**
35: * Set binary mode for this Content ResourceComparator. If this
36: * attribute is set to false, Resource content will be compared
37: * ignoring platform line-ending conventions.
38: * Default is <code>true</code>.
39: * @param b whether to compare content in binary mode.
40: */
41: public void setBinary(boolean b) {
42: binary = b;
43: }
44:
45: /**
46: * Learn whether this Content ResourceComparator is operating in binary mode.
47: * @return boolean binary flag.
48: */
49: public boolean isBinary() {
50: return binary;
51: }
52:
53: /**
54: * Compare two Resources by content.
55: * @param foo the first Resource.
56: * @param bar the second Resource.
57: * @return a negative integer, zero, or a positive integer as the first
58: * argument is less than, equal to, or greater than the second.
59: * @throws BuildException if I/O errors occur.
60: * @see org.apache.tools.ant.util.ResourceUtils#compareContent(Resource, Resource, boolean).
61: */
62: protected int resourceCompare(Resource foo, Resource bar) {
63: try {
64: return ResourceUtils.compareContent(foo, bar, !binary);
65: } catch (IOException e) {
66: throw new BuildException(e);
67: }
68: }
69:
70: }
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