src/main/java/de/unixwork/uwproj/Project.java

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package de.unixwork.uwproj;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

/**
 *
 * @author olaf
 */
public class Project {
    private String path;
    private Properties properties = new Properties();
    
    private HashMap<String,List<Dependency>> namedDependencies = new HashMap<>();
    private List<Dependency> dependencies = new LinkedList<>();
    private List<Target> targets = new LinkedList<>();
    private List<Option> options = new LinkedList<>();
    private List<Feature> features = new LinkedList<>();
    
    private HashMap<String,ConfigVar> configVars = new HashMap<>();
    private List<ConfigVar> configVarsList = new LinkedList<>();
       
    public Project(File file) throws ParserConfigurationException, SAXException, IOException, Exception {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        factory.setNamespaceAware(true);
	DocumentBuilder builder = factory.newDocumentBuilder();
	Document doc = builder.parse(file);
        
        Element root = doc.getDocumentElement();
        NodeList dependency_nodes = root.getElementsByTagName("dependency");
        NodeList target_nodes = root.getElementsByTagName("target");
        NodeList property_nodes = root.getElementsByTagName("property");
        
        NodeList config_nodes = root.getElementsByTagName("config");
        for(int i=0;i<config_nodes.getLength();i++) {
            Element p = (Element)config_nodes.item(i);
            NodeList cfgs = p.getChildNodes();
            for(int c=0;c<cfgs.getLength();c++) {
                Node node = cfgs.item(c);
                if (node.getNodeType() == Node.ELEMENT_NODE) {
                    if(node.getNodeName().equals("var")) {
                        ConfigVar var = ConfigVar.parse((Element)node);
                        if(var != null) {
                            configVarsList.add(var);
                            configVars.put(var.getName(), var);
                        }
                    }
                }
            }
        }
        
        for(int i=0;i<dependency_nodes.getLength();i++) {
            addDependency(Dependency.parse((Element)dependency_nodes.item(i)));
        }
        for(int i=0;i<target_nodes.getLength();i++) {
            targets.add(Target.parse(this, (Element)target_nodes.item(i)));
        }
        for(int i=0;i<property_nodes.getLength();i++) {
            Element p = (Element)property_nodes.item(i);
            String name = p.getAttribute("name");
            String value = p.getAttribute("value");
            if(name != null && value != null) {
                properties.setProperty(name, value);
            } else {
                throw new Exception("Missing property name or value");
            }
        }
        
        if(targets.size() == 0) {
            createDefaultTarget();
        }
    }
    
    private void createDefaultTarget() {
        Target t = new Target();
        t.setAllDependencies(true);
        t.setName("default");
        addTarget(t);
    }
    
    public String getPath() {
        return path;
    }

    public void setPath(String path) {
        this.path = path;
    }
    
    public List<NamedDependency> getNamedDependencies() {
        List<NamedDependency> ret = new LinkedList<>();
        
        for(Map.Entry<String,List<Dependency>> entry : namedDependencies.entrySet()) {
            NamedDependency d = new NamedDependency();
            d.setName(entry.getKey());
            d.setSubdependencies(entry.getValue());
            ret.add(d);
        }
        return ret;
    }
    
    public List<Dependency> getDependencies() {
        return dependencies;
    }

    public List<Target> getTargets() {
        return targets;
    }
    
    public void addDependency(Dependency dependency) {
        if(dependency.getName() != null) {
            List<Dependency> l = namedDependencies.get(dependency.getName());
            if(l == null) {
                l = new LinkedList<>();
                namedDependencies.put(dependency.getName(), l);
            }
            dependency.setNum(l.size());
            l.add(dependency);
        } else {
            dependencies.add(dependency);
        }
    }
    
    public void addTarget(Target target) {
        targets.add(target);
    }
    
    public void addOption(Option o) {
        options.add(o);
    }
    
    public List<Option> getOptions() {
        return options;
    }
    
    public void addFeature(Feature feature) {
        features.add(feature);
    }
    
    public List<Feature> getFeatures() {
        return features;
    }
    
    public List<ConfigVar> getVars() {
        return configVarsList;
    }
    
    public boolean hasVar(String varName) {
        return configVars.containsKey(varName);
    }
}