launcher/api/src/main/java/org/apidesign/bck2brwsr/launcher/InvocationContext.java
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;
40 final List<Resource> resources = new ArrayList<>();
43 InvocationContext(Launcher launcher, Class<?> clazz, String methodName) {
44 this.launcher = launcher;
46 this.methodName = methodName;
49 /** An HTML fragment to be available for the execution. Useful primarily when
50 * executing in a browser via {@link Launcher#createBrowser(java.lang.String)}.
51 * @param html the html fragment
53 public void setHtmlFragment(String html) {
57 /** Arguments to pass to the invoked method.
58 * @param args textual arguments to pass to the method
61 public void setArguments(String... args) {
65 /** HTTP resource to be available during execution. An invocation may
66 * perform an HTTP query and obtain a resource relative to the page.
68 public void addHttpResource(String relativePath, String mimeType, String[] parameters, InputStream content) {
69 if (relativePath == null || mimeType == null || content == null || parameters == null) {
70 throw new NullPointerException();
72 resources.add(new Resource(content, mimeType, relativePath, parameters));
75 /** Invokes the associated method.
76 * @return the textual result of the invocation
77 * @throws java.io.IOException if execution fails
79 public String invoke() throws IOException {
80 launcher.runMethod(this);
84 /** Invokes the associated method.
85 * @param time one element array to store the length of the invocation
86 * - can be <code>null</code>
87 * @return the textual result of the invocation
88 * @throws java.io.IOException if execution fails
91 public String invoke(int[] time) throws IOException {
92 launcher.runMethod(this);
99 /** Obtains textual result of the invocation.
100 * @return text representing the exception or result value
103 public String toString() {
104 if (exception != null) {
105 return exception.toString();
112 * @throws InterruptedException
114 void await(long timeOut) throws InterruptedException {
115 wait.await(timeOut, TimeUnit.MILLISECONDS);
118 void result(String r, int time, Throwable e) {
125 static final class Resource {
126 final InputStream httpContent;
127 final String httpType;
128 final String httpPath;
129 final String[] parameters;
131 Resource(InputStream httpContent, String httpType, String httpPath,
134 httpContent.mark(Integer.MAX_VALUE);
135 this.httpContent = httpContent;
136 this.httpType = httpType;
137 this.httpPath = httpPath;
138 this.parameters = parameters;