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• Cookie.java

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javax.ws.rs.core.Cookie Maven / Gradle / Ivy

/*
 * Copyright (c) 2010, 2017 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package javax.ws.rs.core;

import javax.ws.rs.ext.RuntimeDelegate;
import javax.ws.rs.ext.RuntimeDelegate.HeaderDelegate;

/**
 * Represents the value of a HTTP cookie, transferred in a request.
 * RFC 2109 specifies the legal characters for name,
 * value, path and domain. The default version of 1 corresponds to RFC 2109.
 *
 * @author Paul Sandoz
 * @author Marc Hadley
 * @see IETF RFC 2109
 * @since 1.0
 */
public class Cookie {

    /**
     * Cookies using the default version correspond to RFC 2109.
     */
    public static final int DEFAULT_VERSION = 1;
    private static final HeaderDelegate HEADER_DELEGATE =
            RuntimeDelegate.getInstance().createHeaderDelegate(Cookie.class);
    private final String name;
    private final String value;
    private final int version;
    private final String path;
    private final String domain;

    /**
     * Create a new instance.
     *
     * @param name    the name of the cookie.
     * @param value   the value of the cookie.
     * @param path    the URI path for which the cookie is valid.
     * @param domain  the host domain for which the cookie is valid.
     * @param version the version of the specification to which the cookie complies.
     * @throws IllegalArgumentException if name is {@code null}.
     */
    public Cookie(final String name, final String value, final String path, final String domain, final int version)
            throws IllegalArgumentException {
        if (name == null) {
            throw new IllegalArgumentException("name==null");
        }
        this.name = name;
        this.value = value;
        this.version = version;
        this.domain = domain;
        this.path = path;
    }

    /**
     * Create a new instance.
     *
     * @param name   the name of the cookie.
     * @param value  the value of the cookie.
     * @param path   the URI path for which the cookie is valid.
     * @param domain the host domain for which the cookie is valid.
     * @throws IllegalArgumentException if name is {@code null}.
     */
    public Cookie(final String name, final String value, final String path, final String domain)
            throws IllegalArgumentException {
        this(name, value, path, domain, DEFAULT_VERSION);
    }

    /**
     * Create a new instance.
     *
     * @param name  the name of the cookie.
     * @param value the value of the cookie.
     * @throws IllegalArgumentException if name is {@code null}.
     */
    public Cookie(final String name, final String value)
            throws IllegalArgumentException {
        this(name, value, null, null);
    }

    /**
     * Creates a new instance of {@code Cookie} by parsing the supplied string.
     *
     * @param value the cookie string.
     * @return the newly created {@code Cookie}.
     * @throws IllegalArgumentException if the supplied string cannot be parsed
     *                                  or is {@code null}.
     */
    public static Cookie valueOf(final String value) {
        return HEADER_DELEGATE.fromString(value);
    }

    /**
     * Get the name of the cookie.
     *
     * @return the cookie name.
     */
    public String getName() {
        return name;
    }

    /**
     * Get the value of the cookie.
     *
     * @return the cookie value.
     */
    public String getValue() {
        return value;
    }

    /**
     * Get the version of the cookie.
     *
     * @return the cookie version.
     */
    public int getVersion() {
        return version;
    }

    /**
     * Get the domain of the cookie.
     *
     * @return the cookie domain.
     */
    public String getDomain() {
        return domain;
    }

    /**
     * Get the path of the cookie.
     *
     * @return the cookie path.
     */
    public String getPath() {
        return path;
    }

    /**
     * Convert the cookie to a string suitable for use as the value of the
     * corresponding HTTP header.
     *
     * @return a stringified cookie.
     */
    @Override
    public String toString() {
        return HEADER_DELEGATE.toString(this);
    }

    /**
     * Generate a hash code by hashing all of the cookies properties.
     *
     * @return the cookie hash code.
     */
    @Override
    public int hashCode() {
        int hash = 7;
        hash = 97 * hash + (this.name != null ? this.name.hashCode() : 0);
        hash = 97 * hash + (this.value != null ? this.value.hashCode() : 0);
        hash = 97 * hash + this.version;
        hash = 97 * hash + (this.path != null ? this.path.hashCode() : 0);
        hash = 97 * hash + (this.domain != null ? this.domain.hashCode() : 0);
        return hash;
    }

    /**
     * Compare for equality.
     *
     * @param obj the object to compare to.
     * @return {@code true}, if the object is a {@code Cookie} with the same
     *         value for all properties, {@code false} otherwise.
     */
    @SuppressWarnings({"StringEquality", "RedundantIfStatement"})
    @Override
    public boolean equals(final Object obj) {
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final Cookie other = (Cookie) obj;
        if (this.name != other.name && (this.name == null || !this.name.equals(other.name))) {
            return false;
        }
        if (this.value != other.value && (this.value == null || !this.value.equals(other.value))) {
            return false;
        }
        if (this.version != other.version) {
            return false;
        }
        if (this.path != other.path && (this.path == null || !this.path.equals(other.path))) {
            return false;
        }
        if (this.domain != other.domain && (this.domain == null || !this.domain.equals(other.domain))) {
            return false;
        }
        return true;
    }
}