Java InputStream to String inputStreamToString(InputStream inputStream)

Description

input Stream To String

License

Open Source License

Declaration

public static String inputStreamToString(InputStream inputStream) throws IOException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

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

public class Main {
    public static String inputStreamToString(InputStream inputStream) throws IOException {
        InputStreamReader inputReader = new InputStreamReader(inputStream);
        StringBuilder builder = new StringBuilder();
        char[] buffer = new char[0x1000];
        int bytesRead = inputReader.read(buffer, 0, buffer.length);
        while (bytesRead >= 0) {
            builder.append(buffer, 0, bytesRead);
            bytesRead = inputReader.read(buffer, 0, buffer.length);
        }/*from  w w w. j a  va  2s.  c  o m*/
        return builder.toString();
    }

    @SuppressWarnings("unchecked")
    public static String toString(Object value) {
        if (value instanceof Map)
            return mapToString((Map<String, Object>) value);
        else if (value instanceof List)
            return listToString((List<Object>) value);
        else if (value == null)
            return "null";
        else
            return value.toString().trim();
    }

    public static String mapToString(Map<String, Object> map) {
        LinkedList<String> pairs = new LinkedList<String>();
        ArrayList<String> keyList = new ArrayList<String>(map.keySet());
        Collections.sort(keyList);
        for (String s : keyList) {
            Object value = map.get(s);
            String valueStr = toString(value);
            pairs.add(s + ": " + valueStr);
        }

        return "{" + join(", ", pairs.toArray()) + "}";
    }

    public static String listToString(List<Object> value) {
        Object[] valueStrings = new Object[value.size()];
        for (int i = 0; i < valueStrings.length; i++) {
            valueStrings[i] = toString(value.get(i));
        }
        return "[" + join(", ", valueStrings) + "]";
    }

    public static String join(Object[] tokens, String delimiter) {
        if (tokens.length == 0)
            return "";

        StringBuilder joined = new StringBuilder();

        boolean first = true;
        for (Object token : tokens) {
            if (!first)
                joined.append(delimiter);
            else
                first = false;
            joined.append(token);
        }

        return joined.toString();
    }

    public static String join(String delimiter, Object... tokens) {
        return join(tokens, delimiter);
    }
}

Related

1. InputStreamTOString(InputStream in)
2. InputStreamToString(InputStream in, String charset)
3. InputStreamTOString(InputStream in, String encoding)
4. inputStreamToString(InputStream input)
5. InputStreamToString(InputStream input_stream)
6. InputStreamToString(InputStream inputStream)
7. InputStreamToString(InputStream inputStream)
8. inputStreamToString(InputStream inputStream)
9. inputStreamToString(InputStream inputStream)