Here you can find the source of hasNamespaceURI(@Nullable final Node aNode, @Nullable final String sNamespaceURI)
public static boolean hasNamespaceURI(@Nullable final Node aNode, @Nullable final String sNamespaceURI)
//package com.java2s; /**//from w ww .j av a2 s.c o m * Copyright (C) 2014-2015 Philip Helger (www.helger.com) * philip[at]helger[dot]com * * 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. */ import javax.annotation.Nullable; import org.w3c.dom.Document; import org.w3c.dom.Node; public class Main { public static boolean hasNamespaceURI(@Nullable final Node aNode, @Nullable final String sNamespaceURI) { final String sNSURI = aNode == null ? null : aNode.getNamespaceURI(); return sNSURI != null && sNSURI.equals(sNamespaceURI); } @Nullable public static String getNamespaceURI(@Nullable final Node aNode) { if (aNode instanceof Document) return getNamespaceURI(((Document) aNode).getDocumentElement()); if (aNode != null) return aNode.getNamespaceURI(); return null; } }