diff options
Diffstat (limited to 'branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache')
5 files changed, 0 insertions, 851 deletions
diff --git a/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptImplementation.java b/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptImplementation.java deleted file mode 100644 index 837e24c1d0..0000000000 --- a/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptImplementation.java +++ /dev/null @@ -1,97 +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.tuscany.sca.implementation.script; - -import java.net.MalformedURLException; -import java.net.URL; - -import org.apache.tuscany.sca.contribution.Artifact; -import org.apache.tuscany.sca.contribution.ContributionFactory; -import org.apache.tuscany.sca.contribution.DefaultContributionFactory; -import org.apache.tuscany.sca.contribution.resolver.ModelResolver; -import org.apache.tuscany.sca.extension.helper.utils.ResourceHelper; - -/** - * Represents a Script implementation. - */ -public class ScriptImplementation { - - protected String scriptName; - protected URL scriptURL; - protected String scriptSrc; - protected String scriptLanguage; - - public String getScript() { - return scriptName; - } - - public void setScript(String scriptName) { - this.scriptName = scriptName; - } - - public void setLanguage(String language) { - this.scriptLanguage = language; - } - - public void setElementText(String elementText) { - scriptSrc = elementText; - } - - public String getScriptLanguage() { - if (scriptLanguage == null || scriptLanguage.length() < 1) { - int i = scriptName.lastIndexOf('.'); - if (i > 0) { - scriptLanguage = scriptName.substring(i + 1); - } - } - return scriptLanguage; - } - - public String getScriptSrc() { - if (scriptSrc == null) { - if (scriptName == null) { - throw new IllegalArgumentException("script name is null and no inline source used"); - } - if (scriptURL == null) { - throw new RuntimeException("No script: " + scriptName); - } - - scriptSrc = ResourceHelper.readResource(scriptURL); - } - return scriptSrc; - } - - public void resolve(ModelResolver resolver) { - - if (scriptName != null) { - //FIXME The contribution factory should be injected - ContributionFactory contributionFactory = new DefaultContributionFactory(); - Artifact artifact = contributionFactory.createArtifact(); - artifact.setURI(scriptName); - artifact = resolver.resolveModel(Artifact.class, artifact); - if (artifact.getLocation() != null) { - try { - scriptURL = new URL(artifact.getLocation()); - } catch (MalformedURLException e) { - throw new RuntimeException(e); - } - } - } - } -} diff --git a/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptImplementationActivator.java b/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptImplementationActivator.java deleted file mode 100644 index 4ceb847a7a..0000000000 --- a/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptImplementationActivator.java +++ /dev/null @@ -1,45 +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.tuscany.sca.implementation.script; - -import org.apache.tuscany.sca.assembly.ComponentType; -import org.apache.tuscany.sca.extension.helper.ImplementationActivator; -import org.apache.tuscany.sca.extension.helper.InvokerFactory; -import org.apache.tuscany.sca.extension.helper.utils.PropertyValueObjectFactory; -import org.apache.tuscany.sca.runtime.RuntimeComponent; - -public class ScriptImplementationActivator implements ImplementationActivator<ScriptImplementation> { - - // TODO: seems wrong to need PropertyValueObjectFactory, could it be on Property somehow? - protected PropertyValueObjectFactory propertyFactory; - - public ScriptImplementationActivator(PropertyValueObjectFactory propertyFactory) { - this.propertyFactory = propertyFactory; - } - - public Class<ScriptImplementation> getImplementationClass() { - return ScriptImplementation.class; - } - - public InvokerFactory createInvokerFactory(RuntimeComponent rc, ComponentType ct, ScriptImplementation implementation) { - return new ScriptInvokerFactory(rc, ct, implementation, propertyFactory); - } - -} diff --git a/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptInvoker.java b/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptInvoker.java deleted file mode 100644 index 55b215fedf..0000000000 --- a/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptInvoker.java +++ /dev/null @@ -1,82 +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.tuscany.sca.implementation.script; - -import javax.script.Invocable; -import javax.script.ScriptEngine; -import javax.script.ScriptException; - -import org.apache.axiom.om.OMElement; -import org.apache.bsf.xml.XMLHelper; -import org.apache.tuscany.sca.interfacedef.Operation; -import org.apache.tuscany.sca.invocation.Invoker; -import org.apache.tuscany.sca.invocation.Message; - -/** - * Perform the actual script invocation - */ -public class ScriptInvoker implements Invoker { - - protected ScriptEngine scriptEngine; - protected XMLHelper xmlHelper; - protected Operation operation; - - public ScriptInvoker(ScriptEngine scriptEngine, XMLHelper xmlHelper, Operation operation) { - this.scriptEngine = scriptEngine; - this.xmlHelper = xmlHelper; - this.operation = operation; - } - - protected Object doInvoke(Object[] objects, Operation op) throws ScriptException { - if (xmlHelper != null) { - objects[0] = xmlHelper.toScriptXML((OMElement)objects[0]); - } - - Operation oper = operation; // static setting - if (oper.getName() == null) { // if no static setting - oper = op; // use dynamic setting - } - Object response; - try { - response = ((Invocable)scriptEngine).invokeFunction(oper.getName(), objects); - } catch (ScriptException e) { - throw e; - } catch (Exception e) { - throw new ScriptException(e); - } - - if (xmlHelper != null) { - response = xmlHelper.toOMElement(response); - } - - return response; - } - - public Message invoke(Message msg) { - try { - Object resp = doInvoke((Object[])msg.getBody(), msg.getOperation()); - msg.setBody(resp); - } catch (ScriptException e) { - msg.setFaultBody(e.getCause()); - } - return msg; - } - -} diff --git a/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptInvokerFactory.java b/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptInvokerFactory.java deleted file mode 100644 index 9ac0e2c4fe..0000000000 --- a/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptInvokerFactory.java +++ /dev/null @@ -1,160 +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.tuscany.sca.implementation.script; - -import java.io.StringReader; - -import javax.script.Invocable; -import javax.script.ScriptEngine; -import javax.script.ScriptEngineManager; -import javax.script.ScriptException; - -import org.apache.axiom.om.OMElement; -import org.apache.bsf.xml.XMLHelper; -import org.apache.tuscany.sca.assembly.ComponentReference; -import org.apache.tuscany.sca.assembly.ComponentType; -import org.apache.tuscany.sca.assembly.Property; -import org.apache.tuscany.sca.assembly.Reference; -import org.apache.tuscany.sca.assembly.Service; -import org.apache.tuscany.sca.core.factory.ObjectCreationException; -import org.apache.tuscany.sca.core.factory.ObjectFactory; -import org.apache.tuscany.sca.extension.helper.InvokerFactory; -import org.apache.tuscany.sca.extension.helper.utils.PropertyValueObjectFactory; -import org.apache.tuscany.sca.implementation.script.engines.TuscanyJRubyScriptEngine; -import org.apache.tuscany.sca.interfacedef.InterfaceContract; -import org.apache.tuscany.sca.interfacedef.Operation; -import org.apache.tuscany.sca.interfacedef.java.JavaInterface; -import org.apache.tuscany.sca.interfacedef.wsdl.WSDLInterfaceContract; -import org.apache.tuscany.sca.invocation.Invoker; -import org.apache.tuscany.sca.runtime.RuntimeComponent; - -public class ScriptInvokerFactory implements InvokerFactory { - - protected ScriptEngine scriptEngine; - protected XMLHelper xmlHelper; - - protected RuntimeComponent rc; - protected ComponentType ct; - protected ScriptImplementation implementation; - protected PropertyValueObjectFactory propertyFactory; - - - /** - * @param rc - * @param ct - * @param implementation - * @param propertyFactory - */ - public ScriptInvokerFactory(RuntimeComponent rc, - ComponentType ct, - ScriptImplementation implementation, - PropertyValueObjectFactory propertyFactory) { - super(); - this.rc = rc; - this.ct = ct; - this.implementation = implementation; - this.propertyFactory = propertyFactory; - } - - public Invoker createInvoker(Operation operation) { - init(rc, ct, implementation, propertyFactory); - return new ScriptInvoker(scriptEngine, xmlHelper, operation); - } - - protected synchronized void init(RuntimeComponent rc, ComponentType ct, ScriptImplementation implementation, PropertyValueObjectFactory propertyFactory) { - if(scriptEngine!=null) { - return; - } - try { - scriptEngine = getScriptEngineByExtension(implementation.getScriptLanguage()); - if (scriptEngine == null) { - throw new ObjectCreationException("no script engine found for language: " + implementation.getScriptLanguage()); - } - if (!(scriptEngine instanceof Invocable)) { - throw new ObjectCreationException("script engine does not support Invocable: " + scriptEngine); - } - - for (Reference reference : ct.getReferences()) { - scriptEngine.put(reference.getName(), createReferenceProxy(reference.getName(), rc)); - } - - for (Property property : ct.getProperties()) { - ObjectFactory<?> propertyValueFactory = propertyFactory.createValueFactory(property); - if ( propertyValueFactory != null) { - scriptEngine.put(property.getName(), propertyValueFactory.getInstance()); - } - } - - scriptEngine.eval(new StringReader(implementation.getScriptSrc())); - - } catch (ScriptException e) { - throw new ObjectCreationException(e); - } - - // set the databinding and xmlhelper for wsdl interfaces - for (Service service : rc.getServices()) { - InterfaceContract ic = service.getInterfaceContract(); - if (ic instanceof WSDLInterfaceContract) { - // Set to use the Axiom data binding - ic.getInterface().resetDataBinding(OMElement.class.getName()); - xmlHelper = XMLHelper.getArgHelper(scriptEngine); - } - } - } - - /** - * TODO: RuntimeComponent should provide a method like this - */ - @SuppressWarnings("unchecked") - protected Object createReferenceProxy(String name, RuntimeComponent component) { - for (ComponentReference reference : component.getReferences()) { - if (reference.getName().equals(name)) { - Class iface = ((JavaInterface)reference.getInterfaceContract().getInterface()).getJavaClass(); - return component.getComponentContext().getService(iface, name); - } - } - throw new IllegalArgumentException("reference " + name + " not found on component: " + component); - } - - /** - * Hack for now to work around a problem with the JRuby script engine - */ - protected ScriptEngine getScriptEngineByExtension(String scriptExtn) { - ScriptEngineManager scriptEngineManager = new ScriptEngineManager(); - if ("rb".equals(scriptExtn)) { - return new TuscanyJRubyScriptEngine(); - } else { - if ("py".equals(scriptExtn)) { - pythonCachedir(); - } - return scriptEngineManager.getEngineByExtension(scriptExtn); - } - } - - /** - * If the python home isn't set then let Tuscany suppress messages other than errors - * See TUSCANY-1950 - */ - protected void pythonCachedir() { - if (System.getProperty("python.home") == null) { - System.setProperty("python.verbose", "error"); - } - } -} diff --git a/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/engines/TuscanyJRubyScriptEngine.java b/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/engines/TuscanyJRubyScriptEngine.java deleted file mode 100644 index ebbe14abd8..0000000000 --- a/branches/sca-java-1.2/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/engines/TuscanyJRubyScriptEngine.java +++ /dev/null @@ -1,467 +0,0 @@ -/* -* Copyright (c) 2006, Sun Microsystems, Inc. -* All rights reserved. -* -* Redistribution and use in source and binary forms, with or without -* modification, are permitted provided that the following conditions are met: -* -* - Redistributions of source code must retain the above copyright notice, this -* list of conditions and the following disclaimer. -* -* - Redistributions in binary form must reproduce the above copyright notice, -* this list of conditions and the following disclaimer in the documentation -* and/or other materials provided with the distribution. -* -* - Neither the name of the Sun Microsystems, Inc. nor the names of -* contributors may be used to endorse or promote products derived from this -* software without specific prior written permission. -* -* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND -* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED -* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A -* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE -* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY -* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, -* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF -* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE -* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS -* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH -* DAMAGE. -*/ -package org.apache.tuscany.sca.implementation.script.engines; - -import java.io.File; -import java.io.Reader; -import java.lang.reflect.InvocationHandler; -import java.lang.reflect.Method; -import java.lang.reflect.Proxy; -import java.util.ArrayList; -import java.util.Arrays; -import java.util.Collections; -import java.util.Iterator; -import java.util.List; - -import javax.script.AbstractScriptEngine; -import javax.script.Bindings; -import javax.script.Compilable; -import javax.script.CompiledScript; -import javax.script.Invocable; -import javax.script.ScriptContext; -import javax.script.ScriptEngine; -import javax.script.ScriptEngineFactory; -import javax.script.ScriptException; -import javax.script.SimpleBindings; - -import org.jruby.Ruby; -import org.jruby.RubyException; -import org.jruby.ast.Node; -import org.jruby.exceptions.RaiseException; -import org.jruby.internal.runtime.GlobalVariable; -import org.jruby.internal.runtime.GlobalVariables; -import org.jruby.internal.runtime.ReadonlyAccessor; -import org.jruby.javasupport.Java; -import org.jruby.javasupport.JavaObject; -import org.jruby.javasupport.JavaUtil; -import org.jruby.javasupport.bsf.JRubyEngine; -import org.jruby.runtime.Block; -import org.jruby.runtime.IAccessor; -import org.jruby.runtime.builtin.IRubyObject; - -import com.sun.script.jruby.JRubyScriptEngineFactory; - -/* - * This class is a copy of the class com.sun.script.ruby.JRubyScriptEngine with some minor modifications - * to work around problems with Tuscany setting SCA properties and references as global variable in JRuby - * Should only need it temporarily till a new BSF release fixes it. - */ -@SuppressWarnings("unchecked") -public class TuscanyJRubyScriptEngine extends AbstractScriptEngine - implements Compilable, Invocable { - - // my factory, may be null - private ScriptEngineFactory factory; - private Ruby runtime; - - public TuscanyJRubyScriptEngine() { - init(System.getProperty("com.sun.script.jruby.loadpath")); - } - - public TuscanyJRubyScriptEngine(String loadPath) { - init(loadPath); - } - - // my implementation for CompiledScript - private class JRubyCompiledScript extends CompiledScript { - // my compiled code - private Node node; - - JRubyCompiledScript (Node node) { - this.node = node; - } - - @Override - public ScriptEngine getEngine() { - return TuscanyJRubyScriptEngine.this; - } - - @Override - public Object eval(ScriptContext ctx) throws ScriptException { - return evalNode(node, ctx); - } - } - - // Compilable methods - public CompiledScript compile(String script) - throws ScriptException { - Node node = compileScript(script, context); - return new JRubyCompiledScript(node); - } - - public CompiledScript compile (Reader reader) - throws ScriptException { - Node node = compileScript(reader, context); - return new JRubyCompiledScript(node); - } - - // Invocable methods - public Object invokeFunction(String name, Object[] args) - throws ScriptException { - return invokeImpl(null, name, args, Object.class); - } - - public Object invokeMethod(Object obj, String name, Object[] args) - throws ScriptException { - if (obj == null) { - throw new IllegalArgumentException("script object is null"); - } - return invokeImpl(obj, name, args, Object.class); - } - - public Object getInterface(Object obj, Class clazz) { - if (obj == null) { - throw new IllegalArgumentException("script object is null"); - } - return makeInterface(obj, clazz); - } - - public Object getInterface(Class clazz) { - return makeInterface(null, clazz); - } - - private <T> T makeInterface(Object obj, Class<T> clazz) { - if (clazz == null || !clazz.isInterface()) { - throw new IllegalArgumentException("interface Class expected"); - } - final Object thiz = obj; - return (T) Proxy.newProxyInstance( - clazz.getClassLoader(), - new Class[] { clazz }, - new InvocationHandler() { - public Object invoke(Object proxy, Method m, Object[] args) - throws Throwable { - return invokeImpl(thiz, m.getName(), - args, m.getReturnType()); - } - }); - } - - // ScriptEngine methods - public synchronized Object eval(String str, ScriptContext ctx) - throws ScriptException { - Node node = compileScript(str, ctx); - return evalNode(node, ctx); - } - - public synchronized Object eval(Reader reader, ScriptContext ctx) - throws ScriptException { - Node node = compileScript(reader, ctx); - return evalNode(node, ctx); - } - - public ScriptEngineFactory getFactory() { - synchronized (this) { - if (factory == null) { - factory = new JRubyScriptEngineFactory(); - } - } - return factory; - } - - public Bindings createBindings() { - return new SimpleBindings(); - } - - // package-private methods - void setFactory(ScriptEngineFactory factory) { - this.factory = factory; - } - - // internals only below this point - - private Object rubyToJava(IRubyObject value) { - return rubyToJava(value, Object.class); - } - - private Object rubyToJava(IRubyObject value, Class type) { - return JavaUtil.convertArgument( - Java.ruby_to_java(value, value, Block.NULL_BLOCK), - type); - } - - private IRubyObject javaToRuby(Object value) { - if (value instanceof IRubyObject) { - return (IRubyObject) value; - } - IRubyObject result = JavaUtil.convertJavaToRuby(runtime, value); - if (result instanceof JavaObject) { - return runtime.getModule("JavaUtilities").callMethod(runtime.getCurrentContext(), "wrap", result); - } - return result; - } - - private synchronized Node compileScript(String script, ScriptContext ctx) - throws ScriptException { - GlobalVariables oldGlobals = runtime.getGlobalVariables(); - try { - setGlobalVariables(ctx); - String filename = (String) ctx.getAttribute(ScriptEngine.FILENAME); - if (filename == null) { - filename = "<unknown>"; - } - return runtime.parse(script, filename, null, 0); - } catch (Exception exp) { - throw new ScriptException(exp); - } finally { - if (oldGlobals != null) { - //setGlobalVariables(oldGlobals); - } - } - } - - private synchronized Node compileScript(Reader reader, ScriptContext ctx) - throws ScriptException { - GlobalVariables oldGlobals = runtime.getGlobalVariables(); - try { - setGlobalVariables(ctx); - String filename = (String) ctx.getAttribute(ScriptEngine.FILENAME); - if (filename == null) { - filename = "<unknown>"; - } - return runtime.parse(reader, filename, null, 0); - } catch (Exception exp) { - throw new ScriptException(exp); - } finally { - if (oldGlobals != null) { - //setGlobalVariables(oldGlobals); - } - } - } - - private void setGlobalVariables(final ScriptContext ctx) { - ctx.setAttribute("context", ctx, ScriptContext.ENGINE_SCOPE); - setGlobalVariables(new GlobalVariables(runtime) { - GlobalVariables parent = runtime.getGlobalVariables(); - - @Override - public void define(String name, IAccessor accessor) { - assert name != null; - assert accessor != null; - assert name.startsWith("$"); - synchronized (ctx) { - Bindings engineScope = ctx.getBindings(ScriptContext.ENGINE_SCOPE); - engineScope.put(name, new GlobalVariable(accessor)); - } - } - - - @Override - public void defineReadonly(String name, IAccessor accessor) { - assert name != null; - assert accessor != null; - assert name.startsWith("$"); - synchronized (ctx) { - Bindings engineScope = ctx.getBindings(ScriptContext.ENGINE_SCOPE); - engineScope.put(name, new GlobalVariable(new - ReadonlyAccessor(name, accessor))); - } - } - - @Override - public boolean isDefined(String name) { - assert name != null; - assert name.startsWith("$"); - synchronized (ctx) { - String modifiedName = name.substring(1); - boolean defined = ctx.getAttributesScope(modifiedName) != -1; - return defined ? true : parent.isDefined(name); - } - } - - @Override - public void alias(String name, String oldName) { - assert name != null; - assert oldName != null; - assert name.startsWith("$"); - assert oldName.startsWith("$"); - - if (runtime.getSafeLevel() >= 4) { - throw runtime.newSecurityError("Insecure: can't alias global variable"); - } - - synchronized (ctx) { - int scope = ctx.getAttributesScope(name); - if (scope == -1) { - scope = ScriptContext.ENGINE_SCOPE; - } - - IRubyObject value = get(oldName); - ctx.setAttribute(name, rubyToJava(value), scope); - } - } - - @Override - public IRubyObject get(String name) { - assert name != null; - assert name.startsWith("$"); - - synchronized (ctx) { - // skip '$' and try - String modifiedName = name.substring(1); - int scope = ctx.getAttributesScope(modifiedName); - if (scope == -1) { - return parent.get(name); - } - - Object obj = ctx.getAttribute(modifiedName, scope); - if (obj instanceof IAccessor) { - return ((IAccessor)obj).getValue(); - } else { - return javaToRuby(obj); - } - } - } - - @Override - public IRubyObject set(String name, IRubyObject value) { - assert name != null; - assert name.startsWith("$"); - - if (runtime.getSafeLevel() >= 4) { - throw runtime.newSecurityError("Insecure: can't change global variable value"); - } - - synchronized (ctx) { - // skip '$' and try - String modifiedName = name.substring(1); - int scope = ctx.getAttributesScope(modifiedName); - if (scope == -1) { - scope = ScriptContext.ENGINE_SCOPE; - } - IRubyObject oldValue = get(name); - Object obj = ctx.getAttribute(modifiedName, scope); - if (obj instanceof IAccessor) { - ((IAccessor)obj).setValue(value); - } else { - ctx.setAttribute(modifiedName, rubyToJava(value), scope); - } - return oldValue; - } - } - - @Override - public Iterator getNames() { - List list = new ArrayList(); - synchronized (ctx) { - Iterator<Integer> iterator = ctx.getScopes().iterator(); - int scope; - while (iterator.hasNext()) { - scope = iterator.next().intValue(); - Bindings b = ctx.getBindings(scope); - if (b != null) { - Iterator<String> bIterator = b.keySet().iterator(); - while (bIterator.hasNext()) { - list.add(bIterator.next()); - } - } - } - } - for (Iterator names = parent.getNames(); names.hasNext();) { - list.add(names.next()); - } - return Collections.unmodifiableList(list).iterator(); - } - }); - } - - private void setGlobalVariables(GlobalVariables globals) { - runtime.setGlobalVariables(globals); - } - - private synchronized Object evalNode(Node node, ScriptContext ctx) - throws ScriptException { - GlobalVariables oldGlobals = runtime.getGlobalVariables(); - try { - setGlobalVariables(ctx); - return rubyToJava(runtime.eval(node)); - } catch (RaiseException exp) { - RubyException rexp = exp.getException(); - throw new ScriptException(rexp.toString()); - } catch (Exception exp) { - throw new ScriptException(exp); - } finally { - if (oldGlobals != null) { - //setGlobalVariables(oldGlobals); - } - } - } - - private void init(String loadPath) { - runtime = Ruby.getDefaultInstance(); - if (loadPath == null) { - loadPath = System.getProperty("java.class.path"); - } - List list = new ArrayList(Arrays.asList(loadPath.split(File.pathSeparator))); - list.add("META-INF/jruby.home/lib/ruby/site_ruby/1.8"); - list.add("META-INF/jruby.home/lib/ruby/site_ruby/1.8/java"); - list.add("META-INF/jruby.home/lib/ruby/site_ruby"); - list.add("META-INF/jruby.home/lib/ruby/1.8"); - list.add("META-INF/jruby.home/lib/ruby/1.8/java"); - list.add("lib/ruby/1.8"); - runtime.getLoadService().init(list); - runtime.getLoadService().require("java"); - - } - - private Object invokeImpl(final Object obj, String method, - Object[] args, Class returnType) - throws ScriptException { - if (method == null) { - throw new NullPointerException("method name is null"); - } - - try { - IRubyObject rubyRecv = obj != null ? - JavaUtil.convertJavaToRuby(runtime, obj) : runtime.getTopSelf(); - - IRubyObject[] rubyArgs = JavaUtil.convertJavaArrayToRuby(runtime, args); - - // Create Ruby proxies for any input arguments that are not primitives. - IRubyObject javaUtilities = runtime.getObject().getConstant("JavaUtilities"); - for (int i = 0; i < rubyArgs.length; i++) { - IRubyObject tmp = rubyArgs[i]; - if (tmp instanceof JavaObject) { - rubyArgs[i] = javaUtilities.callMethod(runtime.getCurrentContext(), "wrap", tmp); - } - } - - IRubyObject result = rubyRecv.callMethod(runtime.getCurrentContext(), method, rubyArgs); - return rubyToJava(result, returnType); - } catch (Exception exp) { - throw new ScriptException(exp); - } - } -}
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