io.netty.handler.codec.spdy.SpdySessionStatus Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Copyright 2013 The Netty Project
 *
 * The Netty Project 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 io.netty.handler.codec.spdy;

/**
 * The SPDY session status code and its description.
 */
public class SpdySessionStatus implements Comparable {

    /**
     * 0 OK
     */
    public static final SpdySessionStatus OK =
        new SpdySessionStatus(0, "OK");

    /**
     * 1 Protocol Error
     */
    public static final SpdySessionStatus PROTOCOL_ERROR =
        new SpdySessionStatus(1, "PROTOCOL_ERROR");

    /**
     * 2 Internal Error
     */
    public static final SpdySessionStatus INTERNAL_ERROR =
        new SpdySessionStatus(2, "INTERNAL_ERROR");

    /**
     * Returns the {@link SpdySessionStatus} represented by the specified code.
     * If the specified code is a defined SPDY status code, a cached instance
     * will be returned.  Otherwise, a new instance will be returned.
     */
    public static SpdySessionStatus valueOf(int code) {
        switch (code) {
        case 0:
            return OK;
        case 1:
            return PROTOCOL_ERROR;
        case 2:
            return INTERNAL_ERROR;
        }

        return new SpdySessionStatus(code, "UNKNOWN (" + code + ')');
    }

    private final int code;

    private final String statusPhrase;

    /**
     * Creates a new instance with the specified {@code code} and its
     * {@code statusPhrase}.
     */
    public SpdySessionStatus(int code, String statusPhrase) {
        if (statusPhrase == null) {
            throw new NullPointerException("statusPhrase");
        }

        this.code = code;
        this.statusPhrase = statusPhrase;
    }

    /**
     * Returns the code of this status.
     */
    public int code() {
        return code;
    }

    /**
     * Returns the status phrase of this status.
     */
    public String statusPhrase() {
        return statusPhrase;
    }

    @Override
    public int hashCode() {
        return code();
    }

    @Override
    public boolean equals(Object o) {
        if (!(o instanceof SpdySessionStatus)) {
            return false;
        }

        return code() == ((SpdySessionStatus) o).code();
    }

    @Override
    public String toString() {
        return statusPhrase();
    }

    @Override
    public int compareTo(SpdySessionStatus o) {
        return code() - o.code();
    }
}