javauis/eswt_qt/org.eclipse.swt/Eclipse SWT/common_j2me/org/eclipse/swt/internal/CLDCCompatibilityDelegate.java
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/*******************************************************************************
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 * Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
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 * All rights reserved. This program and the accompanying materials 
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 * are made available under the terms of the Eclipse Public License v1.0
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 * which accompanies this distribution, and is available at
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 * http://www.eclipse.org/legal/epl-v10.html
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 * 
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 * Contributors:
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 *     Nokia Corporation - S60 implementation
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 *******************************************************************************/
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package org.eclipse.swt.internal;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import javax.microedition.io.Connector;
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import javax.microedition.io.file.FileConnection;
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public class CLDCCompatibilityDelegate implements CompatibilityDelegate {
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    public CLDCCompatibilityDelegate(){
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        super();
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    }
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    public InputStream getInputStreamFromFile(String path) throws IOException {
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        String jsr75Path = convertPathToSpecific(path);
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        InputStream inputStream = null;
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        try{
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            FileConnection fileConct = (FileConnection)Connector.open(jsr75Path);
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            inputStream = fileConct.openInputStream();
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            fileConct.close();
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        }
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        catch (IOException e) {
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           throw e;
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        }
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        catch(Exception e)
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        {
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            throw new IOException(e.getMessage());
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        }
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        return inputStream;
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    }
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    public String convertPathToSpecific(String path) {        
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        String res = path;
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        // In JSR 75 the file separator is '/' and not '\'
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        res = res.replace('\\', '/');
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        if (res.startsWith("file:///")) {
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            res = res.substring(8);
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        }
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        boolean hasDrive = false;
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        if (res.length() >= 2) {
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            char drive = res.charAt(0);
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            hasDrive = ((drive >= 'A' && drive <= 'Z') || (drive >= 'a' && drive <= 'z')) 
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                && (res.charAt(1) == ':');
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        }
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        if (!hasDrive) {
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            res = System.getProperty("fileconn.dir.private") + res; // may start now as file:///
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        }
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        if (!res.startsWith("file:///")) {
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            res = "file:///" + res;
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        }
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        // The format now should be: file:///<drive>:/<path>
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        return res;
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    }
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    public boolean canOpenFile(String path) throws SecurityException {
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        String jsr75Path = convertPathToSpecific(path);
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        try {
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            FileConnection fileConct = (FileConnection) Connector
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                    .open(jsr75Path);
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            fileConct.close();
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        } catch (IOException e) {
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            throw new SecurityException(e.getMessage());
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        }
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        return true;
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    }
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    public OutputStream getOutStreamFromFile(String path) throws IOException {
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        String jsr75Path = convertPathToSpecific(path);
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        OutputStream outStream = null; 
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        try{
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            FileConnection fileConct = (FileConnection)Connector.open(jsr75Path);
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            if (!fileConct.exists()) {
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                fileConct.create();
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            }
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            outStream = fileConct.openOutputStream();
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            fileConct.close();
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        }
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        catch(IOException e)
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        {
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            throw e;
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        }
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        catch (Exception e) {
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            throw new IOException(e.getMessage());
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        }
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        return outStream;
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    }    
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}