/*
 * Copyright 2012 PRODYNA AG
 *
 * Licensed under the Eclipse Public License (EPL), Version 1.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.opensource.org/licenses/eclipse-1.0.php or
 * http://www.nabucco.org/License.html
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.nabucco.framework.generator.compiler.transformation.java.common.constraint;

/**
 * NabuccoToJavaBasetypeConstraint
 * 
 * @author Nicolas Moser, PRODYNA AG
 */
final class NabuccoToJavaBasetypeConstraint extends NabuccoToJavaConstraint {

    private static String DEFAULT_MIN_LENGTH = "0";

    private static String DEFAULT_MAX_LENGTH = "n";

    private static String DEFAULT_MIN_VALUE = "0";

    private static String DEFAULT_MAX_VALUE = "n";

    private String minLength;

    private String maxLength;

    private String minValue;

    private String maxValue;

    private String pattern;

    /**
     * Constructs a new {@link NabuccoToJavaBasetypeConstraint} instance.
     * 
     * @param isFieldConstraint
     *            flag for indicating the constraint is for a field or for a statement
     */
    public NabuccoToJavaBasetypeConstraint(boolean isFieldConstraint) {
        super(isFieldConstraint);
        this.minLength = DEFAULT_MIN_LENGTH;
        this.maxLength = DEFAULT_MAX_LENGTH;
        this.minValue = DEFAULT_MIN_VALUE;
        this.maxValue = DEFAULT_MAX_VALUE;
    }

    @Override
    public String getValue() {

        StringBuilder value = new StringBuilder();

        /* Length Constraints */
        value.append(LENGTH_CONSTRAINT);
        value.append(this.minLength);
        value.append(",");
        value.append(this.maxLength);
        value.append(SEPARATOR);

        /* Value Constraints */
        value.append(VALUE_CONSTRAINT);
        value.append(this.minValue);
        value.append(",");
        value.append(this.maxValue);
        value.append(SEPARATOR);

        /* Pattern Constraints */
        if (this.pattern != null) {
            value.append(PATTERN_CONSTRAINT);
            value.append(pattern);
            value.append(SEPARATOR);
        }

        value.append(super.getValue());

        return value.toString();
    }

    @Override
    public void appendMinLengthConstraint(String minLength) {
        if (minLength != null) {
            this.minLength = minLength;
        } else {
            minLength = DEFAULT_MIN_LENGTH;
        }
    }

    @Override
    public void appendMaxLengthConstraint(String maxLength) {
        if (maxLength != null) {
            this.maxLength = maxLength;
        } else {
            maxLength = DEFAULT_MAX_LENGTH;
        }
    }

    @Override
    public void appendMinValueConstraint(String minValue) {
        if (minValue != null) {
            this.minValue = minValue;
        } else {
            minValue = DEFAULT_MIN_VALUE;
        }
    }

    @Override
    public void appendMaxValueConstraint(String maxValue) {
        if (maxValue != null) {
            this.maxValue = maxValue;
        } else {
            maxValue = DEFAULT_MAX_VALUE;
        }
    }

    @Override
    public void appendPatternConstraint(String pattern) {
        this.pattern = pattern;
    }

}