template.java

simple template engine for Java JSP

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package include;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import include.MyConfig;

/**
 *
 * @author James Bond 007
 */
public class Template {
    public class Value{
        String key = "";
        String Value = "";

        public Value(String key, String Value){
            this.key = key;
            this.Value = Value;
        }
    }

    public boolean  safeHTML = true;
    public String themePath = "";
    public ArrayList<Value> valueList = new ArrayList<Value>();
    public String themedata = "";
    private boolean isthemeloaded = false;

    public Template(String themepath){
        MyConfig myconfig = new MyConfig();
        this.themePath = themepath;
        valueList.add(new Value("{CONTENTS}", ""));
        valueList.add(new Value("{HEADER}", ""));
        valueList.add(new Value("{TITLE}", ""));
        valueList.add(new Value("{SEARCH_FORM}", ""));
        valueList.add(new Value("{SCRIPT}", ""));
        valueList.add(new Value("{SUB_HEADER}", ""));
        valueList.add(new Value("{RIGHT_MENU}", ""));
        valueList.add(new Value("{MENU}", ""));
        valueList.add(new Value("{DESCRIPTION}", ""));
        valueList.add(new Value("{HEAD}", ""));
        valueList.add(new Value("{TOP_MENU}", ""));
        valueList.add(new Value("{SIDE_BAR}", ""));
        String cpath = themepath.replace("\\", "/");
        int pos = cpath.indexOf("themes");
        if(pos!=-1)
            valueList.add(new Value("{THEME_PATH}", cpath.substring(pos)));
        else
            valueList.add(new Value("{THEME_PATH}", "themes/default"));
    }

    public int getValueListSize(){
        return valueList.size();
    }

    public boolean hasValue(String Value){
        for(int i = 0; i<this.valueList.size();i++){
            if(this.valueList.get(i).Value.equals(Value)) return true;
        }
        return false;
    }

    public boolean hasKey(String key){
        for(int i = 0; i<this.valueList.size();i++){
            if(this.valueList.get(i).key.equals(key)) return true;
        }
        return false;
    }

    public void removeKey(String key){
        for(int i = 0;i < this.valueList.size();i++){
            if(this.valueList.get(i).key.equals(key)){
                this.valueList.remove(i);
                return;
            }
        }
    }

    public void replaceValue(String key, String Value){
        for(int i = 0;i < this.valueList.size();i++){
            if(this.valueList.get(i).key.equals(key)){
                Value v = this.valueList.get(i);
                v.Value = Value;
                this.valueList.set(i, v);
            }
        }
    }

    public void addValueFromFile(String key, String file, String value) throws FileNotFoundException, IOException{
        File f = new File(this.themePath + "" + File.separator + file);
        //System.out.println("load: " + this.themePath + "" + File.separator + file);
        if(!f.exists() || !f.canRead()) return;
        BufferedReader bf = new BufferedReader(new FileReader(f));
        String line = ""; String data = "";
        while((line = bf.readLine())!= null){
            data += line + "\n";
        }
        bf.close();
        data = data.replace(key, value);
        this.addValue(key, data);
    }

    public void addValueFromFile(String key, String file) throws FileNotFoundException, IOException{
        addValueFromFile(key, file,"");
    }

    public void appendValueFromFile(String key, String file) throws FileNotFoundException, IOException{
        appendValueFromFile(key, file,"");
    }

    public void appendValueFromFile(String key, String file, String value) throws FileNotFoundException, IOException{
        File f = new File(this.themePath + "" + File.separator + file);
        if(!f.exists() || !f.canRead()) return;
        BufferedReader bf = new BufferedReader(new FileReader(f));
        String line = ""; String data = "";
        while((line = bf.readLine())!= null){
            data += line + "\n";
        }
        bf.close();
        data = data.replace(key, value);
        this.appendValue(key, value);
    }

    public void addValue(String key, String Value){
        if(key.equals("{Script}")) Value = "//Begin Javascript\n" + Value;
        Value v = new Value(key,Value);
        if(!hasKey(key)){
            this.valueList.add(v);
        }else{
            replaceValue(key, Value);
        }
    }

    public void appendValue(String key, String Value){
        Value v = new Value(key,Value);
        if(!hasKey(key)){
            this.valueList.add(v);
        }else{
            for(int i = 0;i < this.valueList.size();i++){
                if(this.valueList.get(i).key.equals(key)){
                    v = this.valueList.get(i);
                    v.Value = v.Value + Value;
                    this.valueList.set(i, v);
                }
            }
        }
    }

    public String getThemePath(){
        return this.themePath;
    }

    public void setThemePath(String newtp){
        this.themePath = newtp;
    }

    public void setSafeHTML(boolean newHTML){
        this.safeHTML = newHTML;
    }

    public boolean getSafeHTML(){
        return this.safeHTML;
    }

    public boolean loadTheme(String TName) throws FileNotFoundException, IOException{
        File f = new File(this.themePath + "" + File.separator + TName);
        if(!f.exists() || !f.canRead()) {
            System.out.println("Themes cannot load '" + this.themePath + "" + File.separator + TName + "'");
            return false;
        }
        this.isthemeloaded =false;
        BufferedReader bf = new BufferedReader(new FileReader(f));
        String line = "";
        this.themedata="";
        while((line = bf.readLine())!= null){
            this.themedata += line + "\n";
        }
        bf.close();
        this.isthemeloaded = true;
        return true;
    }

    public String compileTheme(){
        if(this.isthemeloaded){
            for(int i = 0; i< this.valueList.size();i++){
                Value v = this.valueList.get(i);
                this.themedata = this.themedata.replace(v.key, v.Value);
            }
            return this.themedata;
        }
        return "Theme has not been loaded";
    }
}