XmlEnvironment.java
- /**
- *
- * Copyright 2019-2021 Florian Schmaus
- *
- * Licensed 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 org.jivesoftware.smack.packet;
- import org.jivesoftware.smack.util.ParserUtils;
- import org.jivesoftware.smack.util.StringUtils;
- import org.jivesoftware.smack.xml.XmlPullParser;
- public class XmlEnvironment {
- public static final XmlEnvironment EMPTY = new XmlEnvironment((String) null);
- private final String namespace;
- private final String language;
- private final XmlEnvironment next;
- private transient boolean effectiveNamespaceDetermined;
- private transient boolean effectiveLanguageDetermined;
- private transient String effectiveNamespace;
- private transient String effectiveLanguage;
- public XmlEnvironment(String namespace) {
- this(namespace, null);
- }
- public XmlEnvironment(String namespace, String language) {
- this(namespace, language, null);
- }
- private XmlEnvironment(Builder builder) {
- this(builder.namespace, builder.language, builder.next);
- }
- public XmlEnvironment(String namespace, String language, XmlEnvironment next) {
- this.namespace = namespace;
- this.language = language;
- this.next = next;
- }
- public String getNamespace() {
- return namespace;
- }
- public String getEffectiveNamespace() {
- if (effectiveNamespaceDetermined) {
- return effectiveNamespace;
- }
- if (StringUtils.isNotEmpty(namespace)) {
- effectiveNamespace = namespace;
- } else if (next != null) {
- effectiveNamespace = next.getEffectiveNamespace();
- }
- effectiveNamespaceDetermined = true;
- return effectiveNamespace;
- }
- public String getEffectiveNamespaceOrUse(String namespace) {
- String effectiveNamespace = getEffectiveNamespace();
- if (StringUtils.isNullOrEmpty(effectiveNamespace)) {
- return namespace;
- }
- return effectiveNamespace;
- }
- public boolean effectiveNamespaceEquals(String namespace) {
- String effectiveNamespace = getEffectiveNamespace();
- if (effectiveNamespace == null) {
- return false;
- }
- return effectiveNamespace.equals(namespace);
- }
- public String getLanguage() {
- return language;
- }
- public String getEffectiveLanguage() {
- if (effectiveLanguageDetermined) {
- return effectiveLanguage;
- }
- if (StringUtils.isNotEmpty(language)) {
- effectiveLanguage = language;
- } else if (next != null) {
- effectiveLanguage = next.getEffectiveLanguage();
- }
- effectiveLanguageDetermined = true;
- return effectiveLanguage;
- }
- public boolean effectiveLanguageEquals(String language) {
- String effectiveLanguage = getEffectiveLanguage();
- if (effectiveLanguage == null) {
- return false;
- }
- return effectiveLanguage.equals(language);
- }
- private transient String toStringCache;
- @Override
- public String toString() {
- if (toStringCache == null) {
- StringBuilder sb = new StringBuilder();
- sb.append(XmlEnvironment.class.getSimpleName()).append(' ');
- sb.append("xmlns=").append(getEffectiveNamespace()).append(' ');
- sb.append("xmllang=").append(getEffectiveLanguage()).append(' ');
- toStringCache = sb.toString();
- }
- return toStringCache;
- }
- public static XmlEnvironment from(XmlPullParser parser) {
- return from(parser, null);
- }
- public static XmlEnvironment from(XmlPullParser parser, XmlEnvironment outerXmlEnvironment) {
- String namespace = parser.getDefaultNamespace();
- String xmlLang = ParserUtils.getXmlLang(parser);
- return new XmlEnvironment(namespace, xmlLang, outerXmlEnvironment);
- }
- public static Builder builder() {
- return new Builder();
- }
- public static class Builder {
- private String namespace;
- private String language;
- private XmlEnvironment next;
- public Builder withNamespace(String namespace) {
- this.namespace = namespace;
- return this;
- }
- public Builder withLanguage(String language) {
- this.language = language;
- return this;
- }
- public Builder withNext(XmlEnvironment next) {
- this.next = next;
- return this;
- }
- public Builder with(AbstractStreamOpen streamOpen) {
- withNamespace(streamOpen.getNamespace());
- withLanguage(streamOpen.getLanguage());
- return this;
- }
- public XmlEnvironment build() {
- return new XmlEnvironment(this);
- }
- }
- }