jaroslav@370: /**
jaroslav@370:  * Back 2 Browser Bytecode Translator
jaroslav@370:  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jaroslav@370:  *
jaroslav@370:  * This program is free software: you can redistribute it and/or modify
jaroslav@370:  * it under the terms of the GNU General Public License as published by
jaroslav@370:  * the Free Software Foundation, version 2 of the License.
jaroslav@370:  *
jaroslav@370:  * This program is distributed in the hope that it will be useful,
jaroslav@370:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jaroslav@370:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jaroslav@370:  * GNU General Public License for more details.
jaroslav@370:  *
jaroslav@370:  * You should have received a copy of the GNU General Public License
jaroslav@370:  * along with this program. Look for COPYING file in the top folder.
jaroslav@370:  * If not, see http://opensource.org/licenses/GPL-2.0.
jaroslav@370:  */
jaroslav@370: package org.apidesign.bck2brwsr.launcher;
jaroslav@370: 
jaroslav@622: import java.io.IOException;
jaroslav@626: import java.io.InputStream;
jaroslav@667: import java.util.ArrayList;
jaroslav@667: import java.util.List;
jaroslav@371: import java.util.concurrent.CountDownLatch;
jaroslav@371: import java.util.concurrent.TimeUnit;
jaroslav@371: 
jaroslav@622: /** Represents individual method invocation, its context and its result.
jaroslav@370:  *
jaroslav@370:  * @author Jaroslav Tulach <jtulach@netbeans.org>
jaroslav@370:  */
jaroslav@622: public final class InvocationContext {
jaroslav@371:     final CountDownLatch wait = new CountDownLatch(1);
jaroslav@622:     final Class<?> clazz;
jaroslav@370:     final String methodName;
jaroslav@622:     private final Launcher launcher;
jaroslav@371:     private String result;
jaroslav@385:     private Throwable exception;
jaroslav@622:     String html;
jaroslav@667:     final List<Resource> resources = new ArrayList<>();
jaroslav@370: 
jaroslav@622:     InvocationContext(Launcher launcher, Class<?> clazz, String methodName) {
jaroslav@622:         this.launcher = launcher;
jaroslav@622:         this.clazz = clazz;
jaroslav@370:         this.methodName = methodName;
jaroslav@622:     }
jaroslav@622:     
jaroslav@622:     /** An HTML fragment to be available for the execution. Useful primarily when
jaroslav@622:      * executing in a browser via {@link Launcher#createBrowser(java.lang.String)}.
jaroslav@622:      * @param html the html fragment
jaroslav@622:      */
jaroslav@622:     public void setHtmlFragment(String html) {
jaroslav@526:         this.html = html;
jaroslav@370:     }
jaroslav@371:     
jaroslav@622:     /** HTTP resource to be available during execution. An invocation may
jaroslav@622:      * perform an HTTP query and obtain a resource relative to the page.
jaroslav@622:      */
jaroslav@667:     public void addHttpResource(String relativePath, String mimeType, InputStream content) {
jaroslav@623:         if (relativePath == null || mimeType == null || content == null) {
jaroslav@623:             throw new NullPointerException();
jaroslav@623:         }
jaroslav@667:         resources.add(new Resource(content, mimeType, relativePath));
jaroslav@622:     }
jaroslav@622:     
jaroslav@622:     /** Invokes the associated method. 
jaroslav@622:      * @return the textual result of the invocation
jaroslav@622:      */
jaroslav@622:     public String invoke() throws IOException {
jaroslav@622:         launcher.runMethod(this);
jaroslav@622:         return toString();
jaroslav@622:     }
jaroslav@622:     
jaroslav@622:     /** Obtains textual result of the invocation.
jaroslav@622:      * @return text representing the exception or result value
jaroslav@622:      */
jaroslav@622:     @Override
jaroslav@622:     public String toString() {
jaroslav@622:         if (exception != null) {
jaroslav@622:             return exception.toString();
jaroslav@622:         }
jaroslav@622:         return result;
jaroslav@622:     }
jaroslav@622:     
jaroslav@622:     /**
jaroslav@622:      * @param timeOut
jaroslav@622:      * @throws InterruptedException 
jaroslav@622:      */
jaroslav@371:     void await(long timeOut) throws InterruptedException {
jaroslav@371:         wait.await(timeOut, TimeUnit.MILLISECONDS);
jaroslav@371:     }
jaroslav@371:     
jaroslav@385:     void result(String r, Throwable e) {
jaroslav@371:         this.result = r;
jaroslav@371:         this.exception = e;
jaroslav@371:         wait.countDown();
jaroslav@371:     }
jaroslav@370: 
jaroslav@667: 
jaroslav@667:     static final class Resource {
jaroslav@667:         final InputStream httpContent;
jaroslav@667:         final String httpType;
jaroslav@667:         final String httpPath;
jaroslav@667: 
jaroslav@667:         Resource(InputStream httpContent, String httpType, String httpPath) {
jaroslav@667:             this.httpContent = httpContent;
jaroslav@667:             this.httpType = httpType;
jaroslav@667:             this.httpPath = httpPath;
jaroslav@667:         }
jaroslav@667:     }
jaroslav@370: }