netbout-lite-1.5.6.src.main.java.com.netbout.lite.terms.AbstractTerm Maven / Gradle / Ivy
/**
* Copyright (c) 2009-2012, Netbout.com
* 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 NetBout.com 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,
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.netbout.lite.terms;
import com.netbout.lite.Term;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.lang.WordUtils;
/**
* Abstract term.
*
* This class is immutable and thread-safe.
*
* @author Yegor Bugayenko ([email protected])
* @version $Id: AbstractTerm.java 3526 2012-10-30 07:30:27Z guard $
*/
public abstract class AbstractTerm implements Term {
/**
* The list of arguments.
*/
private final transient List arguments;
/**
* Public ctor.
* @param args Arguments
*/
public AbstractTerm(final List args) {
this.arguments = new ArrayList(args);
}
/**
* Create new text term.
* @param text The text to encapsulate
* @return Term created
*/
public static Term text(final String text) {
return new TextTerm(text);
}
/**
* Create new var term.
* @param name Variable name
* @return Term created
*/
public static Term var(final String name) {
return new VarTerm(name);
}
/**
* Create new term.
* @param name Name of it
* @param args Arguments
* @return Term created
*/
public static Term create(final String name, final List args) {
try {
final Class type = Class.forName(
String.format(
"%s.%sTerm",
AbstractTerm.class.getPackage().getName(),
WordUtils.capitalize(name)
)
);
return Term.class.cast(
type.getConstructor(List.class).newInstance(args)
);
} catch (ClassNotFoundException ex) {
throw new IllegalArgumentException(ex);
} catch (NoSuchMethodException ex) {
throw new IllegalArgumentException(ex);
} catch (InstantiationException ex) {
throw new IllegalArgumentException(ex);
} catch (IllegalAccessException ex) {
throw new IllegalArgumentException(ex);
} catch (java.lang.reflect.InvocationTargetException ex) {
throw new IllegalArgumentException(ex);
}
}
/**
* {@inheritDoc}
*/
@Override
public final String toString() {
final StringBuilder text = new StringBuilder();
text.append('(');
text.append(this.getClass().getSimpleName());
for (Term arg : this.args()) {
text.append(' ');
text.append(arg.toString());
}
text.append(')');
return text.toString();
}
/**
* Arguments.
* @return List of them
*/
protected final List args() {
return this.arguments;
}
}