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/* Copyright (c) 2008 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package sample.contacts;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.SortedMap;
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import java.util.TreeMap;
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/**
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* Keeps structured command line parameters for ContactsExample program.
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*
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*
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*
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*/
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public class ContactsExampleParameters {
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/**
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* Actions that can be executed with the sample application.
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* They are all lowercase because they are passed as parameters
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* and then converted using valueOf() method.
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*/
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public enum Actions {
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LIST,
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QUERY,
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ADD,
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DELETE,
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UPDATE;
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}
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private static final String DEFAULT_FEED = "https://www.google.com/m8/feeds/";
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private static final String DEFAULT_PROJECTION = "thin";
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/**
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* Keeps map of parameter -> value.
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* Note! Tree Map is used to keep sequence of fields.
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*/
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private SortedMap<String, String> parameterValueMap =
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new TreeMap<String,String>();
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/**
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* List of command line parameters likely to be the description of an
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* element.
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* Those parameters are added to the list, what are not recognized as a valid
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* command line argument (nor an action or option).
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* These parameters are later parsed by {@link ElementParser} and processed by
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* {@link ElementHelper}.
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*/
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private List<String> elementDesc = new LinkedList<String>();
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/**
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* Stores names of parameters.
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*/
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public enum ParameterNames {
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SCRIPT("script"),
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ACTION("action"),
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BASE_URL("base-url"),
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USERNAME("username"),
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PASSWORD("password"),
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CONTACTFEED("contactfeed"),
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GROUPFEED("groupfeed"),
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SHOWDELETED("showdeleted"),
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REQUIRE_ALL_DELETED("require-all-deleted"),
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UPDATED_MIN("updated-min"),
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OREDERBY("orderby"),
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SORTORDER("sortorder"),
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MAX_RESULTS("max-results"),
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START_INDEX("start-index"),
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HELP("help"),
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PROJECTION("projection"),
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VERBOSE("verbose"),
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ID("id"),
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GROUP("querygroupid"),
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;
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private final String parameterName;
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ParameterNames(String parameterName) {
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this.parameterName = parameterName;
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}
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public String getParameterName() {
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return parameterName;
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}
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}
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/**
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* Constructor used in case script parameter is used.
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*
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* @param commandLineParams command line parameters
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* @param scriptLine line read from a file
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*/
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public ContactsExampleParameters(ContactsExampleParameters commandLineParams,
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String scriptLine) {
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parameterValueMap.putAll(commandLineParams.parameterValueMap);
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elementDesc.addAll(commandLineParams.elementDesc);
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fillFromArguments(scriptLine.split(" "));
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}
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/**
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* Constructor used when no script is passed at command line
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* only the command line parameters are used.
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*
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* @param arguments arguments in form of array
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*/
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public ContactsExampleParameters(String arguments[]) {
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fillFromArguments(arguments);
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}
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/**
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* Parse arguments.
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*
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* @param arguments arguments in form of array
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*/
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private void fillFromArguments(String[] arguments) {
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for (String string : arguments) {
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if (!string.startsWith("--")) {
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throw new IllegalArgumentException("illegal parameter: " + string);
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}
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String param = string.substring(2);
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String params[] = param.split("=", 2);
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boolean found = false;
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for (ParameterNames parameterName : ParameterNames.values()) {
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String name = parameterName.getParameterName().toLowerCase();
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if (name.equals(params[0])) {
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if (params.length == 1) {
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parameterValueMap.put(params[0], "");
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} else {
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parameterValueMap.put(params[0], params[1]);
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}
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found = true;
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break;
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}
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}
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if (!found) {
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elementDesc.add(string);
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}
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}
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verifyAllParameters();
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}
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/**
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* Verify if we understand all parameters.
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*
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* @throws IllegalArgumentException in case there
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* is a parameter which is not expected.
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*/
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private void verifyAllParameters() {
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for (String parameter : parameterValueMap.keySet()) {
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verifyParameter(parameter);
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}
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}
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private void verifyParameter(String name) {
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for (ParameterNames parameter : ParameterNames.values()) {
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if (name.equals(parameter.getParameterName())) {
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return;
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}
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}
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throw new IllegalArgumentException(
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"Parameter " + name + " is not correct.");
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}
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String getParameter(ParameterNames parameters) {
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return parameterValueMap.get(parameters.getParameterName());
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}
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String getScript() {
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return getParameter(ParameterNames.SCRIPT);
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}
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Actions getAction() {
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String actionString = getParameter(ParameterNames.ACTION);
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if (actionString == null) {
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return null;
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}
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return Actions.valueOf(actionString.toUpperCase());
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}
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String getBaseUrl() {
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String url = getParameter(ParameterNames.BASE_URL);
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if (url == null) {
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url = DEFAULT_FEED;
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}
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return url;
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}
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String getUserName() {
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return getParameter(ParameterNames.USERNAME);
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}
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String getPassword() {
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return getParameter(ParameterNames.PASSWORD);
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}
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boolean isContactFeed() {
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return getParameter(ParameterNames.CONTACTFEED) != null;
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}
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boolean isGroupFeed() {
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return getParameter(ParameterNames.GROUPFEED) != null;
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}
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boolean isShowDeleted() {
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return getParameter(ParameterNames.SHOWDELETED) != null;
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}
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String getRequireAllDeleted() {
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return getParameter(ParameterNames.REQUIRE_ALL_DELETED);
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}
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String getUpdatedMin() {
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return getParameter(ParameterNames.UPDATED_MIN);
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}
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String getOrderBy() {
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return getParameter(ParameterNames.OREDERBY);
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}
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String getSortorder() {
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return getParameter(ParameterNames.SORTORDER);
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}
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Integer getMaxResults() {
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String maxResString = getParameter(ParameterNames.MAX_RESULTS);
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if (maxResString != null) {
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Integer val = Integer.parseInt(maxResString);
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if (val.intValue() < 1) {
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throw new RuntimeException(
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ParameterNames.MAX_RESULTS + " should be > 0" );
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}
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return val;
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}
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return null;
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}
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Integer getStartIndex() {
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String startIndexString = getParameter(ParameterNames.START_INDEX);
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if (startIndexString != null) {
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Integer val = Integer.parseInt(startIndexString);
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if (val.intValue() < 1) {
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throw new RuntimeException(
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ParameterNames.START_INDEX + " should be > 0" );
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}
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return val;
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}
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return null;
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}
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boolean isHelp() {
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return (getParameter(ParameterNames.HELP) != null);
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}
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boolean isVerbose() {
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return (getParameter(ParameterNames.VERBOSE) != null);
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}
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String getId() {
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return getParameter(ParameterNames.ID);
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}
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void setId(String id) {
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parameterValueMap.put(ParameterNames.ID.getParameterName(), id);
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}
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String getProjection() {
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String projection = getParameter(ParameterNames.PROJECTION);
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if (projection == null) {
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projection = DEFAULT_PROJECTION;
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}
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return projection;
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}
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String getGroup() {
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return getParameter(ParameterNames.GROUP);
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}
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List<String> getElementDesc() {
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return elementDesc;
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}
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int numberOfParameters() {
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return parameterValueMap.size();
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}
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}
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