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Diffstat (limited to 'src/java/org/apache/poi/util/StaxHelper.java')
-rw-r--r-- | src/java/org/apache/poi/util/StaxHelper.java | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/java/org/apache/poi/util/StaxHelper.java b/src/java/org/apache/poi/util/StaxHelper.java new file mode 100644 index 0000000000..ae526d73b7 --- /dev/null +++ b/src/java/org/apache/poi/util/StaxHelper.java @@ -0,0 +1,52 @@ +/* ==================================================================== + Licensed to the Apache Software Foundation (ASF) under one or more + contributor license agreements. See the NOTICE file distributed with + this work for additional information regarding copyright ownership. + The ASF licenses this file to You 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.apache.poi.util; + +import javax.xml.stream.XMLInputFactory; + + +/** + * Provides handy methods for working with StAX parsers and readers + */ +public final class StaxHelper { + private static final POILogger logger = POILogFactory.getLogger(StaxHelper.class); + + private StaxHelper() {} + + /** + * Creates a new StAX XMLInputFactory, with sensible defaults + */ + public static XMLInputFactory newXMLInputFactory() { + XMLInputFactory factory = XMLInputFactory.newFactory(); + trySetProperty(factory, XMLInputFactory.IS_NAMESPACE_AWARE, true); + trySetProperty(factory, XMLInputFactory.IS_VALIDATING, false); + trySetProperty(factory, XMLInputFactory.SUPPORT_DTD, false); + trySetProperty(factory, XMLInputFactory.IS_SUPPORTING_EXTERNAL_ENTITIES, false); + return factory; + } + + private static void trySetProperty(XMLInputFactory factory, String feature, boolean flag) { + try { + factory.setProperty(feature, flag); + } catch (Exception e) { + logger.log(POILogger.WARN, "StAX Property unsupported", feature, e); + } catch (AbstractMethodError ame) { + logger.log(POILogger.WARN, "Cannot set StAX property because outdated StAX parser in classpath", feature, ame); + } + } +} |