From 45052e0d2fd88f30deb34c7c8458ea800fe913b3 Mon Sep 17 00:00:00 2001 From: Peter Reilly Date: Sun, 3 Dec 2006 22:52:05 +0000 Subject: [PATCH] native eol-style git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@481967 13f79535-47bb-0310-9956-ffa450edef68 --- .../ant/util/optional/JavaxScriptRunner.java | 262 +++++++++--------- 1 file changed, 131 insertions(+), 131 deletions(-) diff --git a/src/main/org/apache/tools/ant/util/optional/JavaxScriptRunner.java b/src/main/org/apache/tools/ant/util/optional/JavaxScriptRunner.java index 2dd34beea..3a68c8aad 100644 --- a/src/main/org/apache/tools/ant/util/optional/JavaxScriptRunner.java +++ b/src/main/org/apache/tools/ant/util/optional/JavaxScriptRunner.java @@ -1,131 +1,131 @@ -/* - * 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.optional; - -import org.apache.tools.ant.BuildException; - - -import java.util.Iterator; -import org.apache.tools.ant.util.ScriptRunnerBase; -import org.apache.tools.ant.util.ReflectUtil; -import org.apache.tools.ant.util.ReflectWrapper; - - -/** - * This class is used to run javax.script scripts - * - */ -public class JavaxScriptRunner extends ScriptRunnerBase { - private ReflectWrapper engine; - - /** - * Get the name of the manager prefix. - * @return "javax" - */ - public String getManagerName() { - return "javax"; - } - - /** {@inheritDoc}. */ - public boolean supportsLanguage() { - if (engine != null) { - return true; - } - checkLanguage(); - ClassLoader origLoader = replaceContextLoader(); - try { - return createEngine() != null; - } catch (Exception ex) { - return false; - } finally { - restoreContextLoader(origLoader); - } - } - - /** - * Do the work to run the script. - * - * @param execName the name that will be passed to the - * scripting engine for this script execution. - * - * @exception BuildException if someting goes wrong exectuing the script. - */ - public void executeScript(String execName) throws BuildException { - evalulateScript(execName); - } - - /** - * Do the work to eval the script. - * - * @param execName the name that will be passed to the - * scripting engine for this script execution. - * @return the result of the evalulation - * @exception BuildException if someting goes wrong exectuing the script. - */ - public Object evalulateScript(String execName) throws BuildException { - checkLanguage(); - ClassLoader origLoader = replaceContextLoader(); - try { - ReflectWrapper engine = createEngine(); - if (engine == null) { - throw new BuildException( - "Unable to create javax script engine for " - + getLanguage()); - } - for (Iterator i = getBeans().keySet().iterator(); i.hasNext();) { - String key = (String) i.next(); - Object value = getBeans().get(key); - engine.invoke( - "put", String.class, key, Object.class, value); - } - // execute the script - return engine.invoke("eval", String.class, getScript()); - } catch (Exception be) { - Throwable t = be; - Throwable te = (Throwable) ReflectUtil.invoke(be, "getCause"); - if (te != null) { - if (te instanceof BuildException) { - throw (BuildException) te; - } else { - t = te; - } - } - throw new BuildException(t); - } finally { - restoreContextLoader(origLoader); - } - } - - private ReflectWrapper createEngine() throws Exception { - if (engine != null) { - return engine; - } - ReflectWrapper manager = new ReflectWrapper( - getClass().getClassLoader(), "javax.script.ScriptEngineManager"); - Object e = manager.invoke( - "getEngineByName", String.class, getLanguage()); - if (e == null) { - return null; - } - ReflectWrapper ret = new ReflectWrapper(e); - if (getKeepEngine()) { - this.engine = ret; - } - return ret; - } -} +/* + * 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.optional; + +import org.apache.tools.ant.BuildException; + + +import java.util.Iterator; +import org.apache.tools.ant.util.ScriptRunnerBase; +import org.apache.tools.ant.util.ReflectUtil; +import org.apache.tools.ant.util.ReflectWrapper; + + +/** + * This class is used to run javax.script scripts + * + */ +public class JavaxScriptRunner extends ScriptRunnerBase { + private ReflectWrapper engine; + + /** + * Get the name of the manager prefix. + * @return "javax" + */ + public String getManagerName() { + return "javax"; + } + + /** {@inheritDoc}. */ + public boolean supportsLanguage() { + if (engine != null) { + return true; + } + checkLanguage(); + ClassLoader origLoader = replaceContextLoader(); + try { + return createEngine() != null; + } catch (Exception ex) { + return false; + } finally { + restoreContextLoader(origLoader); + } + } + + /** + * Do the work to run the script. + * + * @param execName the name that will be passed to the + * scripting engine for this script execution. + * + * @exception BuildException if someting goes wrong exectuing the script. + */ + public void executeScript(String execName) throws BuildException { + evalulateScript(execName); + } + + /** + * Do the work to eval the script. + * + * @param execName the name that will be passed to the + * scripting engine for this script execution. + * @return the result of the evalulation + * @exception BuildException if someting goes wrong exectuing the script. + */ + public Object evalulateScript(String execName) throws BuildException { + checkLanguage(); + ClassLoader origLoader = replaceContextLoader(); + try { + ReflectWrapper engine = createEngine(); + if (engine == null) { + throw new BuildException( + "Unable to create javax script engine for " + + getLanguage()); + } + for (Iterator i = getBeans().keySet().iterator(); i.hasNext();) { + String key = (String) i.next(); + Object value = getBeans().get(key); + engine.invoke( + "put", String.class, key, Object.class, value); + } + // execute the script + return engine.invoke("eval", String.class, getScript()); + } catch (Exception be) { + Throwable t = be; + Throwable te = (Throwable) ReflectUtil.invoke(be, "getCause"); + if (te != null) { + if (te instanceof BuildException) { + throw (BuildException) te; + } else { + t = te; + } + } + throw new BuildException(t); + } finally { + restoreContextLoader(origLoader); + } + } + + private ReflectWrapper createEngine() throws Exception { + if (engine != null) { + return engine; + } + ReflectWrapper manager = new ReflectWrapper( + getClass().getClassLoader(), "javax.script.ScriptEngineManager"); + Object e = manager.invoke( + "getEngineByName", String.class, getLanguage()); + if (e == null) { + return null; + } + ReflectWrapper ret = new ReflectWrapper(e); + if (getKeepEngine()) { + this.engine = ret; + } + return ret; + } +}