FilterModifierDelegate.java

/**
 * Copyright (c) Codice Foundation
 * <p>
 * This is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser
 * General Public License as published by the Free Software Foundation, either version 3 of the
 * License, or any later version.
 * <p>
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details. A copy of the GNU Lesser General Public License
 * is distributed along with this program and can be found at
 * <http://www.gnu.org/licenses/lgpl.html>.
 **/
package ddf.sdk.plugin.presubscription;

import org.opengis.filter.Filter;

import ddf.catalog.data.Metacard;
import ddf.catalog.filter.FilterBuilder;
import ddf.catalog.filter.delegate.CopyFilterDelegate;

public class FilterModifierDelegate extends CopyFilterDelegate {
    public FilterModifierDelegate(FilterBuilder filterBuilder) {
        super(filterBuilder);
    }

    @Override
    public Filter propertyIsLike(String propertyName, String literal, boolean isCaseSensitive) {

        // Build the original filter
        Filter originalFilter = filterBuilder.attribute(propertyName)
                .like()
                .text(literal);

        // Add extra contextual search phrase on "any text" field to only
        // allow catalog entries referencing Canada to generate events when
        // created/updated/deleted
        Filter extraFilter = filterBuilder.attribute(Metacard.ANY_TEXT)
                .like()
                .text("CAN");

        // AND both filters together and return it
        Filter modifiedFilter = filterBuilder.allOf(originalFilter, extraFilter);

        return modifiedFilter;
    }
}