AbstractRequestParams.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 net.formio;

import java.util.Iterator;

import net.formio.ajax.AjaxParams;
import net.formio.internal.FormUtils;
import net.formio.upload.UploadedFile;

/**
 * Basis for {@link RequestParams} implementations.
 * @author Radek Beran
 */
public abstract class AbstractRequestParams implements RequestParams {

	@Override
	public String getParamValue(String paramName) {
		String value = null;
		String[] values = this.getParamValues(paramName);
		if (values != null && values.length > 0) {
			value = values[0];
		}
		return value;
	}

	@Override
	public UploadedFile getUploadedFile(String paramName) {
		UploadedFile file = null;
		UploadedFile[] files = this.getUploadedFiles(paramName);
		if (files != null && files.length > 0) {
			file = files[0];
		}
		return file;
	}
	
	@Override
	public boolean isTdiAjaxRequest() {
		return containsParam(AjaxParams.INFUSE);
	}
	
	@Override
	public String getTdiAjaxSrcElementName() {
		return getParamValue(AjaxParams.SRC_ELEMENT_NAME);
	}
	
	@Override
	public String toString() {
		StringBuilder sb = new StringBuilder();
		boolean first = true;
		for (String paramName : getParamNames()) {
			if (first) {
				first = false;
			} else {
				sb.append("\n");
			}
			String value = getParamValue(paramName);
			sb.append(paramName).append("=").append(FormUtils.truncate(value, 60));
		}
		return sb.toString();
	}
	
	protected boolean containsParam(String paramName) {
		boolean found = false;
		Iterable<String> params = getParamNames();
		if (params != null) {
			for (Iterator<String> it = params.iterator(); it.hasNext(); ) {
				String param = it.next();
				if (param != null && param.equals(paramName)) {
					found = true;
					break;
				}
			}
		}
		return found;
	}
}