android/src/com/android/tools/idea/templates/FmClassNameToResourceMethod.java

/*
 * Copyright (C) 2013 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * 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 com.android.tools.idea.templates;

import freemarker.template.*;

import java.util.List;

import static com.android.tools.idea.templates.FmUtil.stripSuffix;
import static com.android.tools.idea.wizard.template.TemplateWizardState.ACTIVITY_NAME_SUFFIX;

/**
 * Similar to {@link FmCamelCaseToUnderscoreMethod}, but strips off common class
 * suffixes such as "Activity", "Fragment", etc.
 */
public class FmClassNameToResourceMethod implements TemplateMethodModelEx {
    @Override
    public TemplateModel exec(List args) throws TemplateModelException {
        if (args.size() != 1) {
            throw new TemplateModelException("Wrong arguments");
        }

        String name = ((TemplateScalarModel)args.get(0)).getAsString();

        if (name.isEmpty()) {
            return new SimpleScalar("");
        }

        // Use recursive stripping
        name = stripSuffix(name, ACTIVITY_NAME_SUFFIX, true);
        name = stripSuffix(name, "Fragment", true);              //$NON-NLS-1$
        name = stripSuffix(name, "Service", true);               //$NON-NLS-1$
        name = stripSuffix(name, "Provider", true);              //$NON-NLS-1$

        return new SimpleScalar(TemplateUtils.camelCaseToUnderlines(name));
    }
}