launcher/api/src/main/java/org/apidesign/bck2brwsr/launcher/InvocationContext.java
JavaScript in a browser can be at most three times slower than HotSpot when computing five or ten thousands of prime numbers
2 * Back 2 Browser Bytecode Translator
3 * Copyright (C) 2012-2015 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, version 2 of the License.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. Look for COPYING file in the top folder.
16 * If not, see http://opensource.org/licenses/GPL-2.0.
18 package org.apidesign.bck2brwsr.launcher;
20 import java.io.IOException;
21 import java.io.InputStream;
22 import java.util.ArrayList;
23 import java.util.List;
24 import java.util.concurrent.CountDownLatch;
25 import java.util.concurrent.TimeUnit;
27 /** Represents individual method invocation, its context and its result.
29 * @author Jaroslav Tulach <jtulach@netbeans.org>
31 public final class InvocationContext {
32 final CountDownLatch wait = new CountDownLatch(1);
34 final String methodName;
35 private final Launcher launcher;
36 private String result;
37 private Throwable exception;
39 final List<Resource> resources = new ArrayList<>();
42 InvocationContext(Launcher launcher, Class<?> clazz, String methodName) {
43 this.launcher = launcher;
45 this.methodName = methodName;
48 /** An HTML fragment to be available for the execution. Useful primarily when
49 * executing in a browser via {@link Launcher#createBrowser(java.lang.String)}.
50 * @param html the html fragment
52 public void setHtmlFragment(String html) {
56 /** HTTP resource to be available during execution. An invocation may
57 * perform an HTTP query and obtain a resource relative to the page.
59 public void addHttpResource(String relativePath, String mimeType, String[] parameters, InputStream content) {
60 if (relativePath == null || mimeType == null || content == null || parameters == null) {
61 throw new NullPointerException();
63 resources.add(new Resource(content, mimeType, relativePath, parameters));
66 /** Invokes the associated method.
67 * @return the textual result of the invocation
68 * @throws java.io.IOException if execution fails
70 public String invoke() throws IOException {
71 launcher.runMethod(this);
75 /** Invokes the associated method.
76 * @param time one element array to store the length of the invocation
77 * - can be <code>null</code>
78 * @return the textual result of the invocation
79 * @throws java.io.IOException if execution fails
82 public String invoke(int[] time) throws IOException {
83 launcher.runMethod(this);
90 /** Obtains textual result of the invocation.
91 * @return text representing the exception or result value
94 public String toString() {
95 if (exception != null) {
96 return exception.toString();
103 * @throws InterruptedException
105 void await(long timeOut) throws InterruptedException {
106 wait.await(timeOut, TimeUnit.MILLISECONDS);
109 void result(String r, int time, Throwable e) {
116 static final class Resource {
117 final InputStream httpContent;
118 final String httpType;
119 final String httpPath;
120 final String[] parameters;
122 Resource(InputStream httpContent, String httpType, String httpPath,
125 httpContent.mark(Integer.MAX_VALUE);
126 this.httpContent = httpContent;
127 this.httpType = httpType;
128 this.httpPath = httpPath;
129 this.parameters = parameters;