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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| /* | ||
| * Copyright (c) 2013-2022, 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.Map; | ||
| import java.util.concurrent.ConcurrentHashMap; | ||
| import java.util.concurrent.ConcurrentMap; | ||
| import javax.xml.xpath.XPath; | ||
| import javax.xml.xpath.XPathConstants; | ||
| import javax.xml.xpath.XPathExpressionException; | ||
| import javax.xml.xpath.XPathFactory; | ||
| import lombok.EqualsAndHashCode; | ||
| import org.w3c.dom.Element; | ||
| import org.w3c.dom.Node; | ||
|
|
||
| /** | ||
| * XATTR directive. | ||
| * | ||
| * <p>The class is immutable and thread-safe. | ||
| * | ||
| * @since 0.28 | ||
| */ | ||
| @EqualsAndHashCode(of = "expr") | ||
| final class XattrDirective implements Directive { | ||
|
|
||
| /** | ||
| * XPath factory. | ||
| */ | ||
| private static final XPathFactory FACTORY = XPathFactory.newInstance(); | ||
|
|
||
| /** | ||
| * Attribute name. | ||
| */ | ||
| private final transient Arg name; | ||
|
|
||
| /** | ||
| * XPath to use. | ||
| */ | ||
| private final transient Arg expr; | ||
|
|
||
| /** | ||
| * Public ctor. | ||
| * @param attr Name of the attr | ||
| * @param val Text value to set | ||
| * @throws XmlContentException If invalid input | ||
| */ | ||
| XattrDirective(final String attr, final String val) throws XmlContentException { | ||
| this.name = new Arg(attr); | ||
| this.expr = new Arg(val); | ||
| } | ||
|
|
||
| @Override | ||
| public String toString() { | ||
| return String.format("XATTR %s, %s", this.name, this.expr); | ||
| } | ||
|
|
||
| @Override | ||
| public Cursor exec(final Node dom, | ||
| final Cursor cursor, final Stack stack) | ||
| throws ImpossibleModificationException { | ||
| final ConcurrentMap<Node, String> values = | ||
| new ConcurrentHashMap<>(0); | ||
| final XPath xpath = XattrDirective.FACTORY.newXPath(); | ||
| for (final Node node : cursor) { | ||
| try { | ||
| values.put( | ||
| node, | ||
| xpath.evaluate( | ||
| this.expr.raw(), node, XPathConstants.STRING | ||
| ).toString() | ||
| ); | ||
| } catch (final XPathExpressionException ex) { | ||
| throw new ImpossibleModificationException( | ||
| String.format("Invalid XPath expr '%s'", this.expr), ex | ||
| ); | ||
| } | ||
| } | ||
| for (final Map.Entry<Node, String> entry : values.entrySet()) { | ||
| Element.class.cast(entry.getKey()).setAttribute( | ||
| this.name.raw(), entry.getValue() | ||
| ); | ||
| } | ||
| return cursor; | ||
| } | ||
|
|
||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| /* | ||
| * Copyright (c) 2013-2022, 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 com.jcabi.matchers.XhtmlMatchers; | ||
| import javax.xml.parsers.DocumentBuilderFactory; | ||
| import org.apache.commons.lang3.StringUtils; | ||
| import org.hamcrest.MatcherAssert; | ||
| import org.junit.jupiter.api.Test; | ||
| import org.w3c.dom.Document; | ||
|
|
||
| /** | ||
| * Test case for {@link XattrDirective}. | ||
| * | ||
| * @since 0.28 | ||
| */ | ||
| public final class XattrDirectiveTest { | ||
|
|
||
| /** | ||
| * XattrDirective can set attributes to current nodes. | ||
| * @throws Exception If some problem inside | ||
| */ | ||
| @Test | ||
| public void setsAttributesToCurrentNodes() throws Exception { | ||
| final Iterable<Directive> dirs = new Directives( | ||
| StringUtils.join( | ||
| new String[]{ | ||
| "ADD 'root'; ADD 'foo'; UP; ADD 'foo';", | ||
| "XPATH '//*'; XATTR 'bar', 'count(//foo)';", | ||
| } | ||
| ) | ||
| ); | ||
| final Document dom = DocumentBuilderFactory.newInstance() | ||
| .newDocumentBuilder().newDocument(); | ||
| new Xembler(dirs).apply(dom); | ||
| MatcherAssert.assertThat( | ||
| XhtmlMatchers.xhtml(dom), | ||
| XhtmlMatchers.hasXPaths("/root[@bar = 2]") | ||
| ); | ||
| } | ||
| } |