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Output.java
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Output.java
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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;
import java.util.HashMap;
import java.util.Map;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
/**
* Output type for Xembler to use.
* Allows to configure the output.
* @since 0.30
*/
public interface Output {
/**
* Prepare transformer before using it.
* @param transformer Transformer to prepare.
* @since 0.30
*/
void prepare(Transformer transformer);
/**
* Document output.
* Can accept properties to configure the output.
* @since 0.30
*/
final class Document implements Output {
/**
* Properties to configure the output.
*/
private final Map<String, String> properties;
/**
* Ctor.
* Uses default properties.
* @since 0.30
*/
public Document() {
this(Document.defaultProperties());
}
/**
* Ctor.
* @param properties Properties to configure the output.
* @since 0.30
*/
public Document(final Map<String, String> properties) {
this.properties = properties;
}
@Override
public void prepare(final Transformer transformer) {
this.properties.forEach(transformer::setOutputProperty);
}
/**
* 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;
}
}
/**
* Node output.
* Omits XML declaration:
* <p>{@code
* <?xml version="1.0" encoding="UTF-8"?>
* }</p>
* @since 0.30
*/
final class Node implements Output {
@Override
public void prepare(final Transformer transformer) {
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
}
}
}