diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/ProcessUtil.java')
-rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/ProcessUtil.java | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/ProcessUtil.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/ProcessUtil.java new file mode 100644 index 00000000..f6e71b12 --- /dev/null +++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/ProcessUtil.java @@ -0,0 +1,65 @@ +/* + * 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.util; + +import java.lang.management.ManagementFactory; + +/** + * Process Utilities + * @since Ant 1.9.4 + */ +public class ProcessUtil { + + private ProcessUtil() { + } + + /** + * provide id of the current process + * @param fallback + * @return current process id + */ + public static String getProcessId(final String fallback) { + // Note: may fail in some JVM implementations + // therefore fallback has to be provided + + // something like '<pid>@<hostname>', at least in SUN / Oracle JVMs + final String jvmName = ManagementFactory.getRuntimeMXBean().getName(); + final int index = jvmName.indexOf('@'); + + if (index < 1) { + // part before '@' empty (index = 0) / '@' not found (index = -1) + return fallback; + } + + try { + return Long.toString(Long.parseLong(jvmName.substring(0, index))); + } catch (NumberFormatException e) { + // ignore + } + return fallback; + } + + public static void main(String [] args) { + System.out.println(getProcessId("<PID>")); + try { + Thread.sleep(120000); + } catch (Exception exc) { + // ignore + } + } +} |