Application: gvSIG desktop

package org.gvsig.scripting;

import java.io.File;

import java.io.FileReader;

import java.io.IOException;

import java.util.Map;

import org.apache.bsf.BSFEngine;

import org.apache.bsf.BSFException;

public class Script {

    public static final String JAVASCRIPT = ScriptingExtension.JAVASCRIPT;

    public static final String BEANSHELL = ScriptingExtension.BEANSHELL;

    public static final String JYTHON = ScriptingExtension.JYTHON;

    public static final String GROOVY = ScriptingExtension.GROOVY;

        protected BSFEngine bsfEngine;

        protected String language;

        protected String fileName;

        protected Map params;

        protected String codeString;

        protected File file;        

        public Script(Map params) throws Throwable {

                this.params = params;

                if (!params.containsKey("fileName")) {

                        //TODO:

                        throw new Exception();

                }

                this.fileName = (String)params.get("fileName");

                if (!params.containsKey("language")) {

                        //TODO:

                        throw new Exception();

                }

                this.language = (String)params.get("language");

                this.params = params;

                this.initialize();                

        }

        private String readFile(File aFile) throws IOException {

                StringBuffer fileContents = new StringBuffer();

                FileReader fileReader = new FileReader(aFile);

                int c;

                while ((c = fileReader.read()) > -1) {

                        fileContents.append((char)c);

                }

                fileReader.close();

                return fileContents.toString();

        }

        private void initialize() throws BSFException, IOException {

                bsfEngine = ScriptingExtension.getBSFManager().loadScriptingEngine(this.language);

                this.file = new File(this.fileName);

                if (!this.file.exists()) {

                        //TODO:

                        throw new IOException();

                }

                this.codeString = this.readFile(this.file);

        }

        public void run() throws Throwable {

                ScriptingExtension.getBSFManager().declareBean("params",this.params,this.params.getClass());

        if (JYTHON.equals(this.language)){

                this.runStartupScripJython();

            this.bsfEngine.exec(this.fileName, -1, -1, this.codeString);

        }else{

            this.bsfEngine.eval(this.fileName, -1, -1, this.codeString);

        }

        }

        private void runStartupScripJython() throws IOException, BSFException {

                String startUpFileName = ScriptingExtension.getScriptingAppAccesor().getScriptsDirectory();

                startUpFileName = startUpFileName + File.separatorChar+ "jython"+ File.separatorChar+"startup.py";

                File startupFile = new File(startUpFileName);

                if (!startupFile.exists()) {

                        throw new IOException("Startup File "+startUpFileName+" not found");

                        //return;

                }

                String startupCode = this.readFile(startupFile);

                this.bsfEngine.exec(startUpFileName, -1, -1, startupCode);

        }

}