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com.phloc.commons.microdom.serialize.MicroReader Maven / Gradle / Ivy
/**
* Copyright (C) 2006-2015 phloc systems
* http://www.phloc.com
* office[at]phloc[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.
*/
package com.phloc.commons.microdom.serialize;
import java.io.File;
import java.io.InputStream;
import java.io.Reader;
import java.net.URI;
import java.net.URL;
import java.nio.ByteBuffer;
import javax.annotation.Nonnegative;
import javax.annotation.Nullable;
import javax.annotation.WillClose;
import javax.annotation.concurrent.Immutable;
import org.xml.sax.InputSource;
import com.phloc.commons.annotations.PresentForCodeCoverage;
import com.phloc.commons.io.IInputStreamProvider;
import com.phloc.commons.io.IReadableResource;
import com.phloc.commons.io.streams.StreamUtils;
import com.phloc.commons.microdom.IMicroDocument;
import com.phloc.commons.xml.sax.InputSourceFactory;
import com.phloc.commons.xml.serialize.ISAXReaderSettings;
import com.phloc.commons.xml.serialize.SAXReader;
import com.phloc.commons.xml.serialize.SAXReaderSettings;
/**
* Utility class to read an XML stream into an {@link IMicroDocument}.
*
* @author Philip Helger
*/
@Immutable
public final class MicroReader
{
@PresentForCodeCoverage
@SuppressWarnings ("unused")
private static final MicroReader s_aInstance = new MicroReader ();
private MicroReader ()
{}
@Nullable
public static IMicroDocument readMicroXML (@WillClose @Nullable final InputSource aInputSource)
{
return readMicroXML (aInputSource, (ISAXReaderSettings) null);
}
/**
* Read the passed input source as MicroXML.
*
* @param aInputSource
* The input source to use. May be null in which case
* null is directly returned.
* @param aSettings
* The settings to use. If null the default settings will
* be used.
* @return null if either the input source is null
* or if the input was invalid XML.
*/
@Nullable
public static IMicroDocument readMicroXML (@WillClose @Nullable final InputSource aInputSource,
@Nullable final ISAXReaderSettings aSettings)
{
if (aInputSource == null)
return null;
final MicroSAXHandler aMicroHandler = new MicroSAXHandler (false, aSettings == null ? null
: aSettings.getEntityResolver ());
// Copy and modify settings
final SAXReaderSettings aRealSettings = SAXReaderSettings.createCloneOnDemand (aSettings);
aRealSettings.setEntityResolver (aMicroHandler)
.setDTDHandler (aMicroHandler)
.setContentHandler (aMicroHandler)
.setLexicalHandler (aMicroHandler);
if (aRealSettings.getErrorHandler () == null)
aRealSettings.setErrorHandler (aMicroHandler);
if (SAXReader.readXMLSAX (aInputSource, aRealSettings).isFailure ())
return null;
return aMicroHandler.getDocument ();
}
@Nullable
public static IMicroDocument readMicroXML (@WillClose @Nullable final InputStream aIS)
{
return readMicroXML (aIS, (ISAXReaderSettings) null);
}
@Nullable
public static IMicroDocument readMicroXML (@WillClose @Nullable final InputStream aIS,
@Nullable final ISAXReaderSettings aSettings)
{
if (aIS == null)
return null;
try
{
return readMicroXML (InputSourceFactory.create (aIS), aSettings);
}
finally
{
StreamUtils.close (aIS);
}
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final File aFile)
{
return readMicroXML (aFile, (ISAXReaderSettings) null);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final File aFile, @Nullable final ISAXReaderSettings aSettings)
{
if (aFile == null)
return null;
return readMicroXML (InputSourceFactory.create (aFile), aSettings);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final IReadableResource aRes)
{
return readMicroXML (aRes, (ISAXReaderSettings) null);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final IReadableResource aRes,
@Nullable final ISAXReaderSettings aSettings)
{
if (aRes == null)
return null;
return readMicroXML (InputSourceFactory.create (aRes), aSettings);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final IInputStreamProvider aISP)
{
return readMicroXML (aISP, (ISAXReaderSettings) null);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final IInputStreamProvider aISP,
@Nullable final ISAXReaderSettings aSettings)
{
if (aISP == null)
return null;
return readMicroXML (InputSourceFactory.create (aISP), aSettings);
}
@Nullable
public static IMicroDocument readMicroXML (@WillClose @Nullable final Reader aReader)
{
return readMicroXML (aReader, (ISAXReaderSettings) null);
}
@Nullable
public static IMicroDocument readMicroXML (@WillClose @Nullable final Reader aReader,
@Nullable final ISAXReaderSettings aSettings)
{
if (aReader == null)
return null;
try
{
return readMicroXML (InputSourceFactory.create (aReader), aSettings);
}
finally
{
StreamUtils.close (aReader);
}
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final String sXML)
{
return readMicroXML (sXML, (ISAXReaderSettings) null);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final String sXML, @Nullable final ISAXReaderSettings aSettings)
{
if (sXML == null)
return null;
return readMicroXML (InputSourceFactory.create (sXML), aSettings);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final CharSequence sXML)
{
return readMicroXML (sXML, (ISAXReaderSettings) null);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final CharSequence sXML,
@Nullable final ISAXReaderSettings aSettings)
{
if (sXML == null)
return null;
return readMicroXML (InputSourceFactory.create (sXML), aSettings);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final byte [] aXML)
{
return readMicroXML (aXML, (ISAXReaderSettings) null);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final byte [] aXML, @Nullable final ISAXReaderSettings aSettings)
{
if (aXML == null)
return null;
return readMicroXML (InputSourceFactory.create (aXML), aSettings);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final byte [] aXML,
@Nonnegative final int nOfs,
@Nonnegative final int nLen)
{
return readMicroXML (aXML, nOfs, nLen, (ISAXReaderSettings) null);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final byte [] aXML,
@Nonnegative final int nOfs,
@Nonnegative final int nLen,
@Nullable final ISAXReaderSettings aSettings)
{
if (aXML == null)
return null;
return readMicroXML (InputSourceFactory.create (aXML, nOfs, nLen), aSettings);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final char [] aXML)
{
return readMicroXML (aXML, (ISAXReaderSettings) null);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final char [] aXML, @Nullable final ISAXReaderSettings aSettings)
{
if (aXML == null)
return null;
return readMicroXML (InputSourceFactory.create (aXML), aSettings);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final char [] aXML,
@Nonnegative final int nOfs,
@Nonnegative final int nLen)
{
return readMicroXML (aXML, nOfs, nLen, (ISAXReaderSettings) null);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final char [] aXML,
@Nonnegative final int nOfs,
@Nonnegative final int nLen,
@Nullable final ISAXReaderSettings aSettings)
{
if (aXML == null)
return null;
return readMicroXML (InputSourceFactory.create (aXML, nOfs, nLen), aSettings);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final ByteBuffer aXML)
{
return readMicroXML (aXML, (ISAXReaderSettings) null);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final ByteBuffer aXML,
@Nullable final ISAXReaderSettings aSettings)
{
if (aXML == null)
return null;
return readMicroXML (InputSourceFactory.create (aXML), aSettings);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final URI aXML)
{
return readMicroXML (aXML, (ISAXReaderSettings) null);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final URI aXML, @Nullable final ISAXReaderSettings aSettings)
{
if (aXML == null)
return null;
return readMicroXML (InputSourceFactory.create (aXML), aSettings);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final URL aXML)
{
return readMicroXML (aXML, (ISAXReaderSettings) null);
}
@Nullable
public static IMicroDocument readMicroXML (@Nullable final URL aXML, @Nullable final ISAXReaderSettings aSettings)
{
if (aXML == null)
return null;
return readMicroXML (InputSourceFactory.create (aXML), aSettings);
}
}
