122 lines
3.0 KiB
Java
122 lines
3.0 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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import org.jivesoftware.smack.util.stringencoder.Base64;
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/**
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* Bits of Binary data 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="http://xmpp.org/extensions/xep-0231.html">XEP-0231: Bits of
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* Binary</a>
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*/
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public class BoBData {
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private final int maxAge;
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private final String type;
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private byte[] contentBinary;
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private String contentString;
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public BoBData(String type, byte[] content) {
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this(type, content, -1);
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}
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/**
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* BoB data constructor.
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*
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* @param type
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* @param content
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* @param maxAge
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*/
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public BoBData(String type, byte[] content, int maxAge) {
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this.type = type;
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this.contentBinary = content;
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this.maxAge = maxAge;
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}
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public BoBData(String type, String content) {
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this(type, content, -1);
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}
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public BoBData(String type, String content, int maxAge) {
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this.type = type;
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this.contentString = content;
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this.maxAge = maxAge;
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}
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/**
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* Get the max age.
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*
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* @return the max age
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*/
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public int getMaxAge() {
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return maxAge;
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}
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/**
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* Get the type.
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*
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* @return the type
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*/
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public String getType() {
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return type;
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}
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private void setContentBinaryIfRequired() {
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if (contentBinary == null) {
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assert (StringUtils.isNotEmpty(contentString));
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contentBinary = Base64.decode(contentString);
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}
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}
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/**
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* Get the content.
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*
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* @return the content
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*/
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public byte[] getContent() {
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setContentBinaryIfRequired();
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return contentBinary.clone();
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}
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/**
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* Get the content in a Base64 encoded String.
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*
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* @return the content in a Base64 encoded String
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*/
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public String getContentBase64Encoded() {
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if (contentString == null) {
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contentString = Base64.encodeToString(getContent());
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}
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return contentString;
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}
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/**
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* Check if the data is of reasonable size. XEP-0231 suggest that the size should not be more than 8 KiB.
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*
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* @return true if the data if of reasonable size.
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*/
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public boolean isOfReasonableSize() {
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setContentBinaryIfRequired();
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return contentBinary.length <= 8 * 1024;
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}
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}
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