Get the contents of an InputStream as a list of Strings, one entry per line, using the default character encoding of the platform. - Android File Input Output

Android examples for File Input Output:InputStream

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Description

Get the contents of an InputStream as a list of Strings, one entry per line, using the default character encoding of the platform.

Demo Code

/*/*w ww.  ja v a  2  s. c  o  m*/
 * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
 */
//package com.java2s;

import java.io.BufferedReader;

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

import java.io.Reader;

import java.util.ArrayList;

import java.util.List;

public class Main {
    /**
     * Get the contents of an <code>InputStream</code> as a list of Strings, one entry per line, using the default character encoding of the platform.
     * <p>
     * This method buffers the input internally, so there is no need to use a <code>BufferedInputStream</code>.
     * 
     * @param input
     *          the <code>InputStream</code> to read from, not null
     * @return the list of Strings, never null
     * @throws NullPointerException
     *           if the input is null
     * @throws IOException
     *           if an I/O error occurs
     * @since Commons IO 1.1
     */
    public static List<String> readLines(InputStream input)
            throws IOException {
        InputStreamReader reader = new InputStreamReader(input);
        return readLines(reader);
    }

    /**
     * Get the contents of an <code>InputStream</code> as a list of Strings, one entry per line, using the specified character encoding.
     * <p>
     * Character encoding names can be found at <a href="http://www.iana.org/assignments/character-sets">IANA</a>.
     * <p>
     * This method buffers the input internally, so there is no need to use a <code>BufferedInputStream</code>.
     * 
     * @param input
     *          the <code>InputStream</code> to read from, not null
     * @param encoding
     *          the encoding to use, null means platform default
     * @return the list of Strings, never null
     * @throws NullPointerException
     *           if the input is null
     * @throws IOException
     *           if an I/O error occurs
     * @since Commons IO 1.1
     */
    public static List<String> readLines(InputStream input, String encoding)
            throws IOException {
        if (encoding == null) {
            return readLines(input);
        }
        InputStreamReader reader = new InputStreamReader(input, encoding);
        return readLines(reader);
    }

    /**
     * Get the contents of a <code>Reader</code> as a list of Strings, one entry per line.
     * <p>
     * This method buffers the input internally, so there is no need to use a <code>BufferedReader</code>.
     * 
     * @param input
     *          the <code>Reader</code> to read from, not null
     * @return the list of Strings, never null
     * @throws NullPointerException
     *           if the input is null
     * @throws IOException
     *           if an I/O error occurs
     * @since Commons IO 1.1
     */
    public static List<String> readLines(Reader input) throws IOException {
        BufferedReader reader = new BufferedReader(input);
        List<String> list = new ArrayList<String>();
        String line = reader.readLine();
        while (line != null) {
            list.add(line);
            line = reader.readLine();
        }
        return list;
    }
}

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