Java InputStreamReader Read readFileUtf8(IFile file)

Description

read File Utf

License

Open Source License

Declaration

public static String readFileUtf8(IFile file) throws CoreException, IOException 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2013 EclipseSource and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:/*from  www.  j  a va  2 s .  c  om*/
 *    Ralf Sternberg - initial implementation and API
 ******************************************************************************/

import java.io.BufferedReader;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import java.io.UnsupportedEncodingException;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.CoreException;

public class Main {
    public static final String UTF_8 = "UTF-8";

    public static String readFileUtf8(IFile file) throws CoreException, IOException {
        if (file.isAccessible()) {
            InputStream inputStream = file.getContents(true);
            try {
                return readStringUtf8(inputStream);
            } finally {
                inputStream.close();
            }
        }
        return null;
    }

    public static String readStringUtf8(InputStream inputStream) throws IOException {
        BufferedReader reader = createReaderUtf8(inputStream);
        char[] buffer = new char[1024];
        StringBuilder builder = new StringBuilder();
        try {
            int read = reader.read(buffer);
            while (read != -1) {
                builder.append(buffer, 0, read);
                read = reader.read(buffer);
            }
        } finally {
            reader.close();
        }
        return builder.toString();
    }

    public static BufferedReader createReaderUtf8(InputStream inputStream) {
        try {
            return new BufferedReader(new InputStreamReader(inputStream, UTF_8));
        } catch (UnsupportedEncodingException exception) {
            throw new RuntimeException(exception);
        }
    }
}

Related

1. readFiles(String[] files, String encoding)
2. readFileSB(File f)
3. readFileToLines(File file)
4. readFileToList(String fileName, String codeing)
5. readFileToSet(String filePath, String fileEncoding)
6. readFileWithThrow(IFile in)