001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.camel.component.javaspace;
018    
019    import java.io.File;
020    import java.io.FileOutputStream;
021    import java.io.IOException;
022    import java.io.InputStream;
023    import java.io.OutputStream;
024    
025    /**
026     * @version $Revision: 15488 $
027     */
028    public final class Utility {
029    
030        private Utility() {
031        }
032        
033        public static synchronized void setSecurityPolicy(String policyResourceName, String tmpFileName) throws IOException {
034            InputStream in = Thread.currentThread().getContextClassLoader().getResourceAsStream(policyResourceName);
035            if (in == null) {
036                throw new IOException("Unable to find the resource policy.all on classpath");
037            }
038            File outfile = new File(tmpFileName);
039            OutputStream out = new FileOutputStream(outfile);
040    
041            byte[] tmp = new byte[8192];
042            int len = 0;
043            while (true) {
044                len = in.read(tmp);
045                if (len <= 0) {
046                    break;
047                }
048                out.write(tmp, 0, len);
049            }
050            out.close();
051            in.close();
052            System.getProperties().put("java.security.policy", outfile.getAbsolutePath());
053        }
054    
055    }