125 lines
3.3 KiB
Java
125 lines
3.3 KiB
Java
/**
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*
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* Copyright 2016-2017 Fernando Ramirez, Florian Schmaus
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.bob;
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import org.jivesoftware.smack.util.StringUtils;
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/**
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* Content-ID class.
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*
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* @author Fernando Ramirez
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* @author Florian Schmaus
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* @see <a href="https://tools.ietf.org/html/rfc2392">RFC 2392: Content-ID and Message-ID Uniform Resource Locators</a>
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*/
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public class ContentId {
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private final String hash;
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private final String hashType;
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private final String cid;
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private ContentId(String hash, String hashType, String cid) {
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this.hash = StringUtils.requireNotNullNorEmpty(hash, "hash must not be null nor empty");
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this.hashType = StringUtils.requireNotNullNorEmpty(hashType, "hashType must not be null nor empty");
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this.cid = cid;
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}
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/**
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* BoB hash constructor.
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*
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* @param hash TODO javadoc me please
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* @param hashType TODO javadoc me please
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*/
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public ContentId(String hash, String hashType) {
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this(hash, hashType, hashType + '+' + hash + "@bob.xmpp.org");
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}
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/**
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* Get the hash.
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*
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* @return the hash
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*/
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public String getHash() {
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return hash;
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}
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/**
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* Get the hash type.
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*
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* @return the hash type
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*/
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public String getHashType() {
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return hashType;
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}
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/**
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* BoB hash to src attribute string.
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*
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* @return src attribute string
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*/
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public String toSrc() {
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return "cid:" + getCid();
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}
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/**
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* BoB hash to cid attribute string.
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*
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* @return cid attribute string
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*/
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public String getCid() {
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return cid;
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}
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@Override
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public boolean equals(Object other) {
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if (other instanceof ContentId) {
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ContentId otherBob = (ContentId) other;
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return cid.equals(otherBob.cid);
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}
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return false;
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}
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@Override
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public int hashCode() {
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return cid.hashCode();
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}
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/**
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* Get BoB hash from src attribute string.
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*
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* @param src TODO javadoc me please
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* @return the BoB hash
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*/
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public static ContentId fromSrc(String src) {
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String hashType = src.substring(src.lastIndexOf("cid:") + 4, src.indexOf("+"));
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String hash = src.substring(src.indexOf("+") + 1, src.indexOf("@bob.xmpp.org"));
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return new ContentId(hash, hashType);
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}
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/**
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* Get BoB hash from cid attribute string.
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*
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* @param cid TODO javadoc me please
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* @return the BoB hash
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*/
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public static ContentId fromCid(String cid) {
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String hashType = cid.substring(0, cid.indexOf("+"));
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String hash = cid.substring(cid.indexOf("+") + 1, cid.indexOf("@bob.xmpp.org"));
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return new ContentId(hash, hashType, cid);
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}
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}
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