001: /*
002: * The Apache Software License, Version 1.1
003: *
004: * Copyright (c) 1999 The Apache Software Foundation. All rights
005: * reserved.
006: *
007: * Redistribution and use in source and binary forms, with or without
008: * modification, are permitted provided that the following conditions
009: * are met:
010: *
011: * 1. Redistributions of source code must retain the above copyright
012: * notice, this list of conditions and the following disclaimer.
013: *
014: * 2. Redistributions in binary form must reproduce the above copyright
015: * notice, this list of conditions and the following disclaimer in
016: * the documentation and/or other materials provided with the
017: * distribution.
018: *
019: * 3. The end-user documentation included with the redistribution, if
020: * any, must include the following acknowlegement:
021: * "This product includes software developed by the
022: * Apache Software Foundation (http://www.apache.org/)."
023: * Alternately, this acknowlegement may appear in the software itself,
024: * if and wherever such third-party acknowlegements normally appear.
025: *
026: * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
027: * Foundation" must not be used to endorse or promote products derived
028: * from this software without prior written permission. For written
029: * permission, please contact apache@apache.org.
030: *
031: * 5. Products derived from this software may not be called "Apache"
032: * nor may "Apache" appear in their names without prior written
033: * permission of the Apache Group.
034: *
035: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
036: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
037: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
038: * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
039: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
040: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
041: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
042: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
043: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
044: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
045: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
046: * SUCH DAMAGE.
047: * ====================================================================
048: *
049: * This software consists of voluntary contributions made by many
050: * individuals on behalf of the Apache Software Foundation. For more
051: * information on the Apache Software Foundation, please see
052: * <http://www.apache.org/>.
053: *
054: */
055: package com.sun.portal.providers.jsp.jasper3.jasper.compiler;
056:
057: import java.util.Vector;
058:
059: /**
060: * StoredCharDataGenerator generates HTML and other data present in
061: * JSP files to be stored/serialized into a .dat file.
062: *
063: * @author Anil K. Vijendran
064: */
065: public class StoredCharDataGenerator extends GeneratorBase implements
066: ServiceMethodPhase, InitMethodPhase, ClassDeclarationPhase {
067: int stringId;
068: char[] chars;
069: Vector vector;
070: String fileName;
071:
072: public StoredCharDataGenerator(Vector vector, String fileName,
073: int stringId, char[] chars) {
074: this .stringId = stringId;
075: this .chars = chars;
076: this .vector = vector;
077: this .fileName = fileName;
078: }
079:
080: private final String getStringVar() {
081: return "_jspx_html_data[" + stringId + "]";
082: }
083:
084: private final void generateRef(ServletWriter writer) {
085: if (stringId == 0)
086: writer.println("static char[][] _jspx_html_data = null;");
087: }
088:
089: private final void generateInit(ServletWriter writer) {
090: if (stringId == 0) {
091: String name = writer.quoteString(fileName);
092: writer.println("ObjectInputStream oin = null;");
093: writer.println("int numStrings = 0;");
094: writer.println("try {");
095: writer.pushIndent();
096: writer.println("FileInputStream fin = new FileInputStream("
097: + name + ");");
098: writer.println("oin = new ObjectInputStream(fin);");
099: writer
100: .println("_jspx_html_data = (char[][]) oin.readObject();");
101: writer.popIndent();
102: writer.println("} catch (Exception ex) {");
103: writer.pushIndent();
104: writer
105: .println("throw new JasperException(\"Unable to open data file\");");
106: writer.popIndent();
107: writer.println("} finally {");
108: writer.pushIndent();
109: writer.println("if (oin != null)");
110: writer.pushIndent();
111: writer
112: .println("try { oin.close(); } catch (IOException ignore) { }");
113: writer.popIndent();
114: writer.popIndent();
115: writer.println("}");
116: }
117: }
118:
119: private final void generatePrint(ServletWriter writer) {
120: writer.println("out.print(" + getStringVar() + ");");
121: vector.addElement(chars);
122: }
123:
124: public void generate(ServletWriter writer, Class phase) {
125: if (phase.equals(ClassDeclarationPhase.class))
126: generateRef(writer);
127: else if (phase.equals(InitMethodPhase.class))
128: generateInit(writer);
129: else if (phase.equals(ServiceMethodPhase.class))
130: generatePrint(writer);
131: }
132:
133: public boolean generateCoordinates(Class phase) {
134: return false;
135: }
136: }
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