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/* | ||
* Copyright (c) 2013-2023, xembly.org | ||
* All rights reserved. | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions | ||
* are met: 1) Redistributions of source code must retain the above | ||
* copyright notice, this list of conditions and the following | ||
* disclaimer. 2) Redistributions in binary form must reproduce the above | ||
* copyright notice, this list of conditions and the following | ||
* disclaimer in the documentation and/or other materials provided | ||
* with the distribution. 3) Neither the name of the xembly.org nor | ||
* the names of its contributors may be used to endorse or promote | ||
* products derived from this software without specific prior written | ||
* permission. | ||
* | ||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT | ||
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | ||
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL | ||
* THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | ||
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | ||
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
* OF THE POSSIBILITY OF SUCH DAMAGE. | ||
*/ | ||
package org.xembly; | ||
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||
import java.util.Collections; | ||
import java.util.HashMap; | ||
import java.util.Map; | ||
import javax.xml.transform.OutputKeys; | ||
import javax.xml.transform.Transformer; | ||
import javax.xml.transform.TransformerConfigurationException; | ||
import javax.xml.transform.TransformerFactory; | ||
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/** | ||
* Transformer factory. | ||
* @since 0.30 | ||
*/ | ||
public interface Transformers { | ||
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/** | ||
* Create transformer. | ||
* @return Transformer. | ||
*/ | ||
Transformer create(); | ||
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/** | ||
* Transformer factory that omits XML declaration. | ||
* @since 0.30 | ||
*/ | ||
final class Node implements Transformers { | ||
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/** | ||
* Original transformer factory. | ||
*/ | ||
private final Transformers original; | ||
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/** | ||
* Default ctor. | ||
* @since 0.30 | ||
*/ | ||
public Node() { | ||
this.original = new Formatted( | ||
new Default(), | ||
Collections.singletonMap(OutputKeys.OMIT_XML_DECLARATION, "yes") | ||
); | ||
} | ||
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@Override | ||
public Transformer create() { | ||
return this.original.create(); | ||
} | ||
} | ||
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/** | ||
* Transformer factory that produces document transformers. | ||
* All transformers produced by this factory will be configured to produce | ||
* XML documents with XML declaration and indentation. | ||
* @since 0.30 | ||
*/ | ||
final class Document implements Transformers { | ||
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/** | ||
* Original transformer factory. | ||
*/ | ||
private final Transformers original; | ||
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/** | ||
* Default ctor. | ||
* @since 0.30 | ||
*/ | ||
public Document() { | ||
this.original = new Formatted( | ||
new Default(), | ||
Document.defaultProperties() | ||
); | ||
} | ||
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@Override | ||
public Transformer create() { | ||
return this.original.create(); | ||
} | ||
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/** | ||
* Default properties prestructor. | ||
* @return Properties to configure the output. | ||
*/ | ||
private static Map<String, String> defaultProperties() { | ||
final Map<String, String> res = new HashMap<>(); | ||
res.put(OutputKeys.INDENT, "yes"); | ||
res.put(OutputKeys.ENCODING, "UTF-8"); | ||
return res; | ||
} | ||
} | ||
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/** | ||
* Default transformer factory. | ||
* @since 0.30 | ||
*/ | ||
final class Default implements Transformers { | ||
/** | ||
* Default transformer factory. | ||
*/ | ||
private static TransformerFactory TFACTORY = TransformerFactory.newInstance(); | ||
|
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/** | ||
* Transformer factory. | ||
*/ | ||
private final TransformerFactory factory; | ||
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/** | ||
* Default ctor. | ||
* @since 0.30 | ||
*/ | ||
Default() { | ||
this(Default.TFACTORY); | ||
} | ||
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/** | ||
* Ctor. | ||
* @param factory Transformer factory. | ||
* @since 0.30 | ||
*/ | ||
private Default(final TransformerFactory factory) { | ||
this.factory = factory; | ||
} | ||
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@Override | ||
public Transformer create() { | ||
try { | ||
return this.factory.newTransformer(); | ||
} catch (final TransformerConfigurationException ex) { | ||
throw new IllegalStateException( | ||
String.format( | ||
"Failed to create new Transformer at %s", | ||
this.factory.getClass().getCanonicalName() | ||
), | ||
ex | ||
); | ||
} | ||
} | ||
} | ||
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/** | ||
* Transformer factory that produces formatted transformers. | ||
* @since 0.30 | ||
*/ | ||
final class Formatted implements Transformers { | ||
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/** | ||
* Original transformer factory. | ||
*/ | ||
private final Transformers original; | ||
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/** | ||
* Properties to configure the output. | ||
*/ | ||
private final Map<String, String> properties; | ||
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/** | ||
* Ctor. | ||
* @param original Original transformer factory. | ||
* @param properties Properties to configure the output. | ||
*/ | ||
Formatted( | ||
final Transformers original, | ||
final Map<String, String> properties | ||
) { | ||
this.original = original; | ||
this.properties = properties; | ||
} | ||
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@Override | ||
public Transformer create() { | ||
final Transformer transformer = this.original.create(); | ||
this.properties.forEach(transformer::setOutputProperty); | ||
return transformer; | ||
} | ||
} | ||
} |
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