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Volley is a network library from Android source code.

There is a newer version: 2.0.1

/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed 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.android.volley;

import org.apache.http.HttpStatus;

import java.io.Serializable;
import java.util.Collections;
import java.util.Map;

/**
 * Data and headers returned from {@link Network#performRequest(Request)}.
 */
public class NetworkResponse implements Serializable{
    private static final long serialVersionUID = -20150728102000L;

    /**
     * Creates a new network response.
     * @param statusCode the HTTP status code
     * @param data Response body
     * @param headers Headers returned with this response, or null for none
     * @param notModified True if the server returned a 304 and the data was already in cache
     * @param networkTimeMs Round-trip network time to receive network response
     */
    public NetworkResponse(int statusCode, byte[] data, Map headers,
            boolean notModified, long networkTimeMs) {
        this.statusCode = statusCode;
        this.data = data;
        this.headers = headers;
        this.notModified = notModified;
        this.networkTimeMs = networkTimeMs;
    }

    public NetworkResponse(int statusCode, byte[] data, Map headers,
            boolean notModified) {
        this(statusCode, data, headers, notModified, 0);
    }

    public NetworkResponse(byte[] data) {
        this(HttpStatus.SC_OK, data, Collections.emptyMap(), false, 0);
    }

    public NetworkResponse(byte[] data, Map headers) {
        this(HttpStatus.SC_OK, data, headers, false, 0);
    }

    /** The HTTP status code. */
    public final int statusCode;

    /** Raw data from this response. */
    public final byte[] data;

    /** Response headers. */
    public final Map headers;

    /** True if the server returned a 304 (Not Modified). */
    public final boolean notModified;

    /** Network roundtrip time in milliseconds. */
    public final long networkTimeMs;
}