148 lines
4.2 KiB
Java
148 lines
4.2 KiB
Java
/**
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*
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* Copyright 2019 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.smack.packet;
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import org.jivesoftware.smack.util.ParserUtils;
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import org.jivesoftware.smack.util.StringUtils;
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import org.jivesoftware.smack.xml.XmlPullParser;
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public class XmlEnvironment {
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public static final XmlEnvironment EMPTY = new XmlEnvironment((String) null);
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private final String namespace;
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private final String language;
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private final XmlEnvironment next;
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private transient boolean effectiveNamespaceDetermined;
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private transient boolean effectiveLanguageDetermined;
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private transient String effectiveNamespace;
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private transient String effectiveLanguage;
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public XmlEnvironment(String namespace) {
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this(namespace, null);
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}
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public XmlEnvironment(String namespace, String language) {
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this(namespace, language, null);
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}
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private XmlEnvironment(Builder builder) {
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this(builder.namespace, builder.language, builder.next);
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}
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public XmlEnvironment(String namespace, String language, XmlEnvironment next) {
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this.namespace = namespace;
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this.language = language;
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this.next = next;
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}
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public String getNamespace() {
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return namespace;
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}
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public String getEffectiveNamespace() {
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if (effectiveNamespaceDetermined) {
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return effectiveNamespace;
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}
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if (StringUtils.isNotEmpty(namespace)) {
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effectiveNamespace = namespace;
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} else if (next != null) {
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effectiveNamespace = next.getEffectiveNamespace();
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}
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effectiveNamespaceDetermined = true;
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return effectiveNamespace;
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}
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public String getEffectiveNamespaceOrUse(String namespace) {
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String effectiveNamespace = getEffectiveLanguage();
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if (StringUtils.isNullOrEmpty(effectiveNamespace)) {
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return namespace;
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}
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return effectiveNamespace;
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}
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public boolean effectiveNamespaceEquals(String namespace) {
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String effectiveNamespace = getEffectiveNamespace();
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if (effectiveNamespace == null) {
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return false;
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}
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return effectiveNamespace.equals(namespace);
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}
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public String getLanguage() {
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return language;
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}
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public String getEffectiveLanguage() {
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if (effectiveLanguageDetermined) {
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return effectiveLanguage;
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}
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if (StringUtils.isNotEmpty(language)) {
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effectiveLanguage = language;
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} else if (next != null) {
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effectiveLanguage = next.getEffectiveLanguage();
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}
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effectiveLanguageDetermined = true;
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return effectiveLanguage;
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}
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public static XmlEnvironment from(XmlPullParser parser) {
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return from(parser, null);
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}
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public static XmlEnvironment from(XmlPullParser parser, XmlEnvironment outerXmlEnvironment) {
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String namespace = parser.getNamespace();
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String xmlLang = ParserUtils.getXmlLang(parser);
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return new XmlEnvironment(namespace, xmlLang, outerXmlEnvironment);
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}
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public static Builder builder() {
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return new Builder();
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}
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public static class Builder {
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private String namespace;
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private String language;
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private XmlEnvironment next;
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public Builder withNamespace(String namespace) {
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this.namespace = namespace;
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return this;
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}
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public Builder withLanguage(String language) {
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this.language = language;
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return this;
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}
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public Builder withNext(XmlEnvironment next) {
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this.next = next;
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return this;
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}
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public XmlEnvironment build() {
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return new XmlEnvironment(this);
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}
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}
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}
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