/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.java.gen;
import com.caucho.java.JavaWriter;
import com.caucho.server.util.CauchoSystem;
import com.caucho.util.L10N;
import com.caucho.vfs.Depend;
import com.caucho.vfs.Path;
import com.caucho.vfs.PersistentDependency;
import com.caucho.vfs.Vfs;
import java.io.IOException;
import java.util.ArrayList;
/**
* Basic method generation.
*/
public class DependencyComponent extends ClassComponent {
private static final L10N L = new L10N(DependencyComponent.class);
private String _initMethod = "_caucho_init";
private String _isModifiedMethod = "_caucho_is_modified";
private Path _searchPath;
private ArrayList<PersistentDependency> _dependList
= new ArrayList<PersistentDependency>();
/**
* Sets the search path.
*/
public void setSearchPath(Path searchPath)
{
_searchPath = searchPath;
}
/**
* Adds a dependency list.
*/
public void addDependencyList(ArrayList<PersistentDependency> dependList)
{
for (int i = 0; i < dependList.size(); i++)
addDependency(dependList.get(i));
}
/**
* Adds a dependency.
*/
public void addDependency(PersistentDependency depend)
{
if (! _dependList.contains(depend))
_dependList.add(depend);
}
/**
* Generates the code for the dependencies.
*
* @param out the writer to the output stream.
*/
public void generate(JavaWriter out)
throws IOException
{
out.println("private static com.caucho.vfs.Dependency []_caucho_depend;");
out.println();
out.println("public static void " + _initMethod + "(com.caucho.vfs.Path path)");
out.println("{");
out.pushDepth();
out.println("_caucho_depend = new com.caucho.vfs.Dependency[" +
_dependList.size() + "];");
Path searchPath = _searchPath;
for (int i = 0; i < _dependList.size(); i++) {
PersistentDependency dependency = _dependList.get(i);
if (dependency instanceof Depend) {
Depend depend = (Depend) _dependList.get(i);
Path path = depend.getPath();
out.print("_caucho_depend[" + i + "] = new com.caucho.vfs.Depend(");
// php/3b33
String relativePath;
if (searchPath != null)
relativePath = searchPath.lookup(path.getRelativePath()).getRelativePath();
else {
String fullPath = path.getFullPath();
String pwd = Vfs.lookup().getFullPath();
if (fullPath.startsWith(pwd))
relativePath = "./" + fullPath.substring(pwd.length());
else
relativePath = fullPath;
}
out.print("path.lookup(\"" + relativePath + "\"), ");
out.println(depend.getDigest() + "L, "
+ depend.getRequireSource() + ");");
}
else {
out.print("_caucho_depend[" + i + "] = ");
out.print(dependency.getJavaCreateString());
out.println(";");
}
}
out.popDepth();
out.println("}");
out.println();
out.println("public static boolean " + _isModifiedMethod + "()");
out.println("{");
out.pushDepth();
//printVersionChange(out);
out.println("for (int i = _caucho_depend.length - 1; i >= 0; i--) {");
out.println(" if (_caucho_depend[i].isModified())");
out.println(" return true;");
out.println("}");
out.println();
out.println("return false;");
out.popDepth();
out.println("}");
}
/**
* Prints code to detect a version change.
*/
protected void printVersionChange(JavaWriter out)
throws IOException
{
out.println("if (com.caucho.server.util.CauchoSystem.getVersionId() != " +
"0x" + Long.toHexString(CauchoSystem.getVersionId()) + "L)");
out.println(" return true;");
}
}