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Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/selectors/modifiedselector/ChecksumAlgorithm.java')
-rw-r--r--framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/selectors/modifiedselector/ChecksumAlgorithm.java151
1 files changed, 0 insertions, 151 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/selectors/modifiedselector/ChecksumAlgorithm.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/selectors/modifiedselector/ChecksumAlgorithm.java
deleted file mode 100644
index 210d5dc9..00000000
--- a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/selectors/modifiedselector/ChecksumAlgorithm.java
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * 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.types.selectors.modifiedselector;
-
-import java.io.BufferedInputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.security.NoSuchAlgorithmException;
-import java.util.Locale;
-import java.util.zip.Adler32;
-import java.util.zip.CRC32;
-import java.util.zip.CheckedInputStream;
-import java.util.zip.Checksum;
-
-import org.apache.tools.ant.BuildException;
-
-
-/**
- * Computes a 'checksum' for the content of file using
- * java.util.zip.CRC32 and java.util.zip.Adler32.
- * Use of this algorithm doesn't require any additional nested <param>s.
- * Supported <param>s are:
- * <table>
- * <tr>
- * <th>name</th><th>values</th><th>description</th><th>required</th>
- * </tr>
- * <tr>
- * <td> algorithm.algorithm </td>
- * <td> ADLER | CRC ( default ) </td>
- * <td> name of the algorithm the checksum should use </td>
- * <td> no, defaults to CRC </td>
- * </tr>
- * </table>
- *
- * @version 2004-06-17
- * @since Ant 1.7
- */
-public class ChecksumAlgorithm implements Algorithm {
-
-
- // ----- member variables -----
-
-
- /**
- * Checksum algorithm to be used.
- */
- private String algorithm = "CRC";
-
- /**
- * Checksum interface instance
- */
- private Checksum checksum = null;
-
-
- // ----- Algorithm-Configuration -----
-
-
- /**
- * Specifies the algorithm to be used to compute the checksum.
- * Defaults to "CRC". Other popular algorithms like "ADLER" may be used as well.
- * @param algorithm the digest algorithm to use
- */
- public void setAlgorithm(String algorithm) {
- this.algorithm =
- algorithm != null ? algorithm.toUpperCase(Locale.ENGLISH) : null;
- }
-
-
- /** Initialize the checksum interface. */
- public void initChecksum() {
- if (checksum != null) {
- return;
- }
- if ("CRC".equals(algorithm)) {
- checksum = new CRC32();
- } else if ("ADLER".equals(algorithm)) {
- checksum = new Adler32();
- } else {
- throw new BuildException(new NoSuchAlgorithmException());
- }
- }
-
-
- // ----- Logic -----
-
-
- /**
- * This algorithm supports only CRC and Adler.
- * @return <i>true</i> if all is ok, otherwise <i>false</i>.
- */
- public boolean isValid() {
- return "CRC".equals(algorithm) || "ADLER".equals(algorithm);
- }
-
-
- /**
- * Computes a value for a file content with the specified checksum algorithm.
- * @param file File object for which the value should be evaluated.
- * @return The value for that file
- */
- public String getValue(File file) {
- initChecksum();
- String rval = null;
-
- try {
- if (file.canRead()) {
- checksum.reset();
- FileInputStream fis = new FileInputStream(file);
- CheckedInputStream check = new CheckedInputStream(fis, checksum);
- BufferedInputStream in = new BufferedInputStream(check);
- while (in.read() != -1) {
- // Read the file
- }
- rval = Long.toString(check.getChecksum().getValue());
- in.close();
- }
- } catch (Exception e) {
- rval = null;
- }
- return rval;
- }
-
-
- /**
- * Override Object.toString().
- * @return some information about this algorithm.
- */
- public String toString() {
- StringBuilder buf = new StringBuilder();
- buf.append("<ChecksumAlgorithm:");
- buf.append("algorithm=").append(algorithm);
- buf.append(">");
- return buf.toString();
- }
-}