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JNAerator (pronounce "generator") simply parses C and Objective-C headers and generates the corresponding JNA and Rococoa Java interfaces (it also has a very limited support for C++). This lets Java programmers access native libraries transparently, with full IDE support and little to no hand-tweaking. Users who are looking for ready-to-use libraries should check the NativeLibs4Java project instead.
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/*
 Copyright (c) 2009-2013 Olivier Chafik, All Rights Reserved
	
 This file is part of JNAerator (http://jnaerator.googlecode.com/).
	
 JNAerator 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 3 of the License, or
 (at your option) any later version.
	
 JNAerator 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.  See the
 GNU General Public License for more details.
	
 You should have received a copy of the GNU General Public License
 along with JNAerator.  If not, see .
 */
package com.ochafik.admin.visualstudio;

import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.TreeSet;
import static com.ochafik.admin.visualstudio.VisualStudioUtils.*;

import javax.xml.xpath.XPathExpressionException;

import org.w3c.dom.Document;
import org.w3c.dom.Node;

import com.ochafik.xml.XMLUtils;
import com.ochafik.xml.XPathUtils;

public class Project implements Comparable {

    public final Solution solution;
    public File projectFile;
    public String name, id;
    public List depsIds = new ArrayList();
    public Map activeConfigurationNameBySolutionConfigurationName = new LinkedHashMap();
    public Map configurations = new LinkedHashMap();
    public Map fileConfigurations = new LinkedHashMap();
    public List files = new ArrayList();

    public Project(Solution solution, File projectFile, String name, String id) {
        this.solution = solution;
        this.projectFile = projectFile;
        this.name = name;
        this.id = id;
    }

    public int compareTo(Project o) {
        return name.compareTo(o.name);
    }

    String resolve(String s, Configuration configuration) {
        String res = resolveVariables(s, solution, this, configuration);
        return res == null || res.length() == 0 ? null : res;
    }

    public String resolveStringByXPath(String xPathString, Object source, Configuration configuration) throws XPathExpressionException {
        return resolve(XPathUtils.findStringByXPath(xPathString, source), configuration);
    }

    @SuppressWarnings("unchecked")
    public List resolveListByXPath(String xPathString, Object source, String separatorPattern, Configuration configuration) throws XPathExpressionException {
        String s = resolve(XPathUtils.findStringByXPath(xPathString, source), configuration);
        return s == null ? Collections.EMPTY_LIST : Arrays.asList(s.split(separatorPattern));
    }

    public TreeSet resolveSetByXPath(String xPathString, Object source, String separatorPattern, Configuration configuration) throws XPathExpressionException {
        return new TreeSet(resolveListByXPath(xPathString, source, separatorPattern, configuration));
    }

    Configuration parseConfiguration(Node configNode) throws XPathExpressionException {
        Configuration config = new Configuration();
        config.name = resolve(XPathUtils.findStringByXPath("@Name", configNode), config);
        if (config.name == null) {
            return null;
        }

        config.outputDirectory = resolve(XPathUtils.findStringByXPath("@OutputDirectory", configNode), config);

        Node compilerTool = XPathUtils.findNodeByXPath("Tool[@Name='VCCLCompilerTool']", configNode);
        if (compilerTool != null) {
            config.includes = resolveListByXPath("@AdditionalIncludeDirectories", compilerTool, ";", config);
            config.preprocessorDefinitions = resolveSetByXPath("@PreprocessorDefinitions", compilerTool, ";", config);
        }
        config.outputFile = resolve(XPathUtils.findStringByXPath("Tool[@Name='VCLinkerTool']/@OutputFile", configNode), config);
        /*if (config.outputFile == null)
         config.outputFile = name + ".dll";*/

        return config;
    }

    public void parse(FileFilter fileFilter, boolean parseFileConfigurations, Solution solution) throws Exception {
        if (!projectFile.exists() || !projectFile.isFile()) {
            throw new IOException("Cannot find project file " + projectFile);
        }

        Document document = XMLUtils.readXML(projectFile);
        File projectPath = projectFile.getParentFile();

        for (Node configurationNode : XPathUtils.findNodesIterableByXPath("VisualStudioProject/Configurations/Configuration", document)) {
            Configuration config = parseConfiguration(configurationNode);
            if (config != null) {
                configurations.put(config.name, config);
            }
        }
        for (Node fileNode : XPathUtils.findNodesIterableByXPath("//Files//File", document)) {
            String relativePath = resolveStringByXPath("@RelativePath", fileNode, null);
            if (relativePath == null) {
                continue;
            }

            File file = relFile(projectPath, relativePath);
            if (fileFilter != null && !fileFilter.accept(file)) {
                continue;
            }

            files.add(file);

            if (parseFileConfigurations) {
                FileConfiguration fileConfiguration = new FileConfiguration();
                fileConfiguration.file = file;
                fileConfigurations.put(file, fileConfiguration);
                for (Node fileConfigurationNode : XPathUtils.findNodesIterableByXPath("FileConfiguration", fileNode)) {
                    Configuration config = parseConfiguration(fileConfigurationNode);
                    if (config != null) {
                        fileConfiguration.configurations.put(config.name, config);
                    }
                }
            }
        }
    }

    static File relFile(File base, String relPath) {
        relPath = relPath.replace('\\', File.separatorChar).replace('/', File.separatorChar);
        return new File(base, relPath);
    }
}