reflex.function.ReplaceNode Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of Reflex Show documentation
null
There is a newer version: 3.0.4
/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2011-2016 Incapture Technologies LLC
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package reflex.function;

import java.util.ArrayList;
import java.util.List;

import reflex.IReflexHandler;
import reflex.ReflexException;
import reflex.Scope;
import reflex.debug.IReflexDebugger;
import reflex.node.BaseNode;
import reflex.node.ReflexNode;
import reflex.value.ReflexValue;

/**
 * A message node attempts to punt a message to a notification provider (of type
 * text)
 * 
 * @author amkimian
 * 
 */
public class ReplaceNode extends BaseNode {

    private ReflexNode valueNode;
    private ReflexNode sourceNode;
    private ReflexNode targetNode;

    public ReplaceNode(int lineNumber, IReflexHandler handler, Scope s, ReflexNode value, ReflexNode source, ReflexNode target) {
        super(lineNumber, handler, s);
        valueNode = value;
        sourceNode = source;
        targetNode = target;
    }

    @Override
    public ReflexValue evaluate(IReflexDebugger debugger, Scope scope) {
        debugger.stepStart(this, scope);
        ReflexValue value = valueNode.evaluate(debugger, scope);
        ReflexValue source = sourceNode.evaluate(debugger, scope);
        ReflexValue target = targetNode.evaluate(debugger, scope);
        ReflexValue retVal = value;
        if (value.isString()) {
            String newValue = value.asString().replace(source.asString(), target.asString());
            retVal = new ReflexValue(newValue);
        } else if (value.isList()) {
            List values = value.asList();
            List newValues = new ArrayList();
            for(ReflexValue v : values) {
                if (v.equals(source)) {
                    newValues.add(target);
                } else {
                    newValues.add(v);
                }
            }
            retVal = new ReflexValue(newValues);
        } else {
            throw new ReflexException(lineNumber, "Cannot replace these types: " + this);
        }
        debugger.stepEnd(this, retVal, scope);
        return retVal;
    }

    @Override
    public String toString() {
        return super.toString() + " - " + String.format("replace(%s,%s,%s)", valueNode, sourceNode, targetNode);
    }
}