Java tutorial
/* * $Id$ * $URL$ * * ==================================================================== * Ikasan Enterprise Integration Platform * * Distributed under the Modified BSD License. * Copyright notice: The copyright for this software and a full listing * of individual contributors are as shown in the packaged copyright.txt * file. * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * - Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * - Neither the name of the ORGANIZATION nor the names of its contributors may * be used to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== */ package org.ikasan.dashboard.ui.administration.panel; import java.io.PrintWriter; import java.io.StringWriter; import java.util.HashMap; import java.util.List; import org.apache.log4j.Logger; import org.ikasan.security.dao.constants.SecurityConstants; import org.ikasan.security.model.AuthenticationMethod; import org.ikasan.security.service.LdapService; import org.ikasan.security.service.SecurityService; import org.ikasan.security.service.authentication.AuthenticationProviderFactory; import com.vaadin.data.Property; import com.vaadin.data.Property.ValueChangeEvent; import com.vaadin.data.Property.ValueChangeListener; import com.vaadin.data.util.BeanItem; import com.vaadin.navigator.View; import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent; import com.vaadin.ui.Alignment; import com.vaadin.ui.Button; import com.vaadin.ui.Button.ClickEvent; import com.vaadin.ui.CheckBox; import com.vaadin.ui.ComboBox; import com.vaadin.ui.GridLayout; import com.vaadin.ui.Label; import com.vaadin.ui.Notification; import com.vaadin.ui.Panel; import com.vaadin.ui.PasswordField; import com.vaadin.ui.TextField; import com.vaadin.ui.VerticalLayout; /** * @author Ikasan Development Team * */ public class UserDirectoryManagementPanel extends Panel { private static final long serialVersionUID = 6005593259860222561L; private static final String APPLICATION_SECURITY_GROUP_ATTRIBUTE_NAME = "sAMAccountName"; private static final String LDAP_USER_SEARCH_FILTER = "(sAMAccountName={0})"; private static final String ACCOUNT_TYPE_ATTRIBUTE_NAME = "accountType"; private static final String USER_ACCOUNT_NAME_ATTRIBUTE_NAME = "sAMAccountName"; private static final String EMAIL_ATTRIBUTE_NAME = "mail"; private static final String FIRST_NAME_ATTRIBUTE_NAME = "givenName"; private static final String SURNAME_ATTRIBUTE_NAME = "sn"; private static final String DEPARTMENT_ATTRIBUTE_NAME = "department"; private static final String LDAP_USER_DESCRIPTION_ATTRIBUTE_NAME = "description"; private static final String APPLICATION_SECURITY_DESCRIPTION_ATTRIBUTE_NAME = "description"; private static final String MEMBER_OF_ATTRIBUTE_NAME = "memberOf"; private Logger logger = Logger.getLogger(UserDirectoryManagementPanel.class); private HashMap<String, AuthenticationMethodDropdownValue> authenticationMethodDropdownValuesMap = new HashMap<String, AuthenticationMethodDropdownValue>(); private final AuthenticationMethodDropdownValue LOCAL_AUTHENTICATION = new AuthenticationMethodDropdownValue( "Local Authentication", SecurityConstants.AUTH_METHOD_LOCAL); private final AuthenticationMethodDropdownValue LDAP_LOCAL_AUTHENTICATION = new AuthenticationMethodDropdownValue( "LDAP + Local Authentication", SecurityConstants.AUTH_METHOD_LDAP_LOCAL); private final AuthenticationMethodDropdownValue LDAP_AUTHENTICATION = new AuthenticationMethodDropdownValue( "LDAP Authentication", SecurityConstants.AUTH_METHOD_LDAP); private SecurityService securityService; private TextField directoryName; private TextField ldapServerUrl; private TextField ldapBindUserDn; private PasswordField ldapBindUserPassword; private TextField ldapUserSearchDn; private TextField ldapUserSearchFilter; private TextField accountTypeAttributeName; private TextField userAccountNameAttributeName; private TextField emailAttributeName; private TextField firstNameAttributeName; private TextField surnameAttributeName; private TextField departmentAttributeName; private TextField ldapUserDescriptionAttributeName; private TextField applicationSecurityBaseDn; private TextField applicationSecurityGroupAttributeName; private TextField applicationSecurityDescriptionAttributeName; private TextField memberofAttributeName; private AuthenticationMethod authenticationMethod; private ComboBox authenticationMethodCombo = new ComboBox(); private AuthenticationProviderFactory<AuthenticationMethod> authenticationProviderFactory; private LdapService ldapService; /** * Constructor * * @param ikasanModuleService */ public UserDirectoryManagementPanel(AuthenticationMethod authenticationMethod, SecurityService securityService, AuthenticationProviderFactory<AuthenticationMethod> authenticationProviderFactory, LdapService ldapService) { super(); this.authenticationMethod = authenticationMethod; if (this.authenticationMethod == null) { throw new IllegalArgumentException("authenticationMethod cannot be null!"); } this.securityService = securityService; if (this.securityService == null) { throw new IllegalArgumentException("securityService cannot be null!"); } this.authenticationProviderFactory = authenticationProviderFactory; if (this.authenticationProviderFactory == null) { throw new IllegalArgumentException("authenticationProviderFactory cannot be null!"); } this.ldapService = ldapService; if (this.ldapService == null) { throw new IllegalArgumentException("ldapService cannot be null!"); } init(); } protected void init() { this.setWidth("100%"); this.setHeight("100%"); VerticalLayout layout = new VerticalLayout(); layout.setMargin(true); Panel securityAdministrationPanel = new Panel(); securityAdministrationPanel.setStyleName("dashboard"); securityAdministrationPanel.setWidth("100%"); securityAdministrationPanel.setHeight("100%"); GridLayout gridLayout = new GridLayout(2, 25); gridLayout.setSpacing(true); gridLayout.setWidth("100%"); gridLayout.setHeight("100%"); gridLayout.setMargin(true); gridLayout.setColumnExpandRatio(0, 0.3f); gridLayout.setColumnExpandRatio(1, 0.7f); authenticationMethodCombo.addItem(LOCAL_AUTHENTICATION); authenticationMethodCombo.setItemCaption(LOCAL_AUTHENTICATION, LOCAL_AUTHENTICATION.getCaption()); authenticationMethodCombo.addItem(LDAP_LOCAL_AUTHENTICATION); authenticationMethodCombo.setItemCaption(LDAP_LOCAL_AUTHENTICATION, LDAP_LOCAL_AUTHENTICATION.getCaption()); authenticationMethodCombo.addItem(LDAP_AUTHENTICATION); authenticationMethodCombo.setItemCaption(LDAP_AUTHENTICATION, LDAP_AUTHENTICATION.getCaption()); authenticationMethodDropdownValuesMap.put(LOCAL_AUTHENTICATION.getValue(), LOCAL_AUTHENTICATION); authenticationMethodDropdownValuesMap.put(LDAP_LOCAL_AUTHENTICATION.getValue(), LDAP_LOCAL_AUTHENTICATION); authenticationMethodDropdownValuesMap.put(LDAP_AUTHENTICATION.getValue(), LDAP_AUTHENTICATION); final Label serverSettings = new Label("Server Settings"); serverSettings.setStyleName("large-bold"); gridLayout.addComponent(serverSettings, 0, 0); final Label directoryNameLabel = new Label("Directory Name:"); directoryNameLabel.setSizeUndefined(); this.directoryName = new TextField(); this.directoryName.setWidth("400px"); this.directoryName.setRequired(true); gridLayout.addComponent(directoryNameLabel, 0, 1); gridLayout.addComponent(this.directoryName, 1, 1); gridLayout.setComponentAlignment(directoryNameLabel, Alignment.MIDDLE_RIGHT); final Label ldapServerUrlLabel = new Label("LDAP Server URL:"); ldapServerUrlLabel.setSizeUndefined(); this.ldapServerUrl = new TextField(); this.ldapServerUrl.setWidth("400px"); gridLayout.addComponent(ldapServerUrlLabel, 0, 2); gridLayout.addComponent(this.ldapServerUrl, 1, 2); this.ldapServerUrl.setRequired(true); gridLayout.setComponentAlignment(ldapServerUrlLabel, Alignment.MIDDLE_RIGHT); Label hostnameExample = new Label("Hostname of server running LDAP. Example: ldap://ldap.example.com:389"); gridLayout.addComponent(hostnameExample, 1, 3); final Label ldapBindUserDnLabel = new Label("Username:"); ldapBindUserDnLabel.setSizeUndefined(); this.ldapBindUserDn = new TextField(); this.ldapBindUserDn.setWidth("400px"); this.ldapBindUserDn.setRequired(true); gridLayout.addComponent(ldapBindUserDnLabel, 0, 4); gridLayout.addComponent(this.ldapBindUserDn, 1, 4); gridLayout.setComponentAlignment(ldapBindUserDnLabel, Alignment.MIDDLE_RIGHT); Label usernameExample = new Label("User to log into LDAP. Example: cn=user,DC=domain,DC=name"); gridLayout.addComponent(usernameExample, 1, 5); final Label ldapBindUserPasswordLabel = new Label("Password:"); ldapBindUserPasswordLabel.setSizeUndefined(); this.ldapBindUserPassword = new PasswordField(); this.ldapBindUserPassword.setWidth("100px"); this.ldapBindUserPassword.setRequired(true); gridLayout.addComponent(ldapBindUserPasswordLabel, 0, 6); gridLayout.addComponent(this.ldapBindUserPassword, 1, 6); gridLayout.setComponentAlignment(ldapBindUserPasswordLabel, Alignment.MIDDLE_RIGHT); final Label ldapSchema = new Label("LDAP Schema"); ldapSchema.setStyleName("large-bold"); gridLayout.addComponent(ldapSchema, 0, 7); final Label ldapUserSearchDnLabel = new Label("User DN:"); ldapUserSearchDnLabel.setSizeUndefined(); this.ldapUserSearchDn = new TextField(); this.ldapUserSearchDn.setRequired(true); this.ldapUserSearchDn.setWidth("400px"); gridLayout.addComponent(ldapUserSearchDnLabel, 0, 8); gridLayout.setComponentAlignment(ldapUserSearchDnLabel, Alignment.MIDDLE_RIGHT); gridLayout.addComponent(this.ldapUserSearchDn, 1, 8); Label userDnExample = new Label("The base DN to use when searching for users."); gridLayout.addComponent(userDnExample, 1, 9); final Label applicationSecurityBaseDnLabel = new Label("Group DN:"); applicationSecurityBaseDnLabel.setSizeUndefined(); this.applicationSecurityBaseDn = new TextField(); this.applicationSecurityBaseDn.setRequired(true); this.applicationSecurityBaseDn.setWidth("400px"); gridLayout.addComponent(applicationSecurityBaseDnLabel, 0, 10); gridLayout.setComponentAlignment(applicationSecurityBaseDnLabel, Alignment.MIDDLE_RIGHT); gridLayout.addComponent(this.applicationSecurityBaseDn, 1, 10); Label groupDnExample = new Label("The base DN to use when searching for groups."); gridLayout.addComponent(groupDnExample, 1, 11); final Label ldapAttributes = new Label("LDAP Attributes"); ldapAttributes.setStyleName("large-bold"); CheckBox checkbox = new CheckBox("Populate default attributes"); checkbox.setValue(false); checkbox.addValueChangeListener(new Property.ValueChangeListener() { public void valueChange(ValueChangeEvent event) { boolean value = (Boolean) event.getProperty().getValue(); if (value == true) { ldapUserSearchFilter.setValue(LDAP_USER_SEARCH_FILTER); emailAttributeName.setValue(EMAIL_ATTRIBUTE_NAME); userAccountNameAttributeName.setValue(USER_ACCOUNT_NAME_ATTRIBUTE_NAME); accountTypeAttributeName.setValue(ACCOUNT_TYPE_ATTRIBUTE_NAME); firstNameAttributeName.setValue(FIRST_NAME_ATTRIBUTE_NAME); surnameAttributeName.setValue(SURNAME_ATTRIBUTE_NAME); departmentAttributeName.setValue(DEPARTMENT_ATTRIBUTE_NAME); ldapUserDescriptionAttributeName.setValue(LDAP_USER_DESCRIPTION_ATTRIBUTE_NAME); memberofAttributeName.setValue(MEMBER_OF_ATTRIBUTE_NAME); applicationSecurityGroupAttributeName.setValue(APPLICATION_SECURITY_GROUP_ATTRIBUTE_NAME); applicationSecurityDescriptionAttributeName .setValue(APPLICATION_SECURITY_DESCRIPTION_ATTRIBUTE_NAME); } else { ldapUserSearchFilter.setValue(""); emailAttributeName.setValue(""); userAccountNameAttributeName.setValue(""); accountTypeAttributeName.setValue(""); firstNameAttributeName.setValue(""); surnameAttributeName.setValue(""); departmentAttributeName.setValue(""); ldapUserDescriptionAttributeName.setValue(""); memberofAttributeName.setValue(""); applicationSecurityGroupAttributeName.setValue(""); applicationSecurityDescriptionAttributeName.setValue(""); } } }); checkbox.setImmediate(true); gridLayout.addComponent(ldapAttributes, 0, 12); gridLayout.addComponent(checkbox, 1, 12); final Label userSearchFieldLabel = new Label("User Search Filter:"); userSearchFieldLabel.setSizeUndefined(); this.ldapUserSearchFilter = new TextField(); this.ldapUserSearchFilter.setWidth("300px"); this.ldapUserSearchFilter.setRequired(true); gridLayout.addComponent(userSearchFieldLabel, 0, 13); gridLayout.setComponentAlignment(userSearchFieldLabel, Alignment.MIDDLE_RIGHT); gridLayout.addComponent(this.ldapUserSearchFilter, 1, 13); final Label emailAttributeNameLabel = new Label("Email:"); emailAttributeNameLabel.setSizeUndefined(); this.emailAttributeName = new TextField(); this.emailAttributeName.setWidth("300px"); this.emailAttributeName.setRequired(true); gridLayout.addComponent(emailAttributeNameLabel, 0, 14); gridLayout.setComponentAlignment(emailAttributeNameLabel, Alignment.MIDDLE_RIGHT); gridLayout.addComponent(this.emailAttributeName, 1, 14); final Label userAccountNameAttributeNameLabel = new Label("Account Name:"); userAccountNameAttributeNameLabel.setSizeUndefined(); this.userAccountNameAttributeName = new TextField(); this.userAccountNameAttributeName.setWidth("300px"); this.userAccountNameAttributeName.setRequired(true); gridLayout.addComponent(userAccountNameAttributeNameLabel, 0, 15); gridLayout.setComponentAlignment(userAccountNameAttributeNameLabel, Alignment.MIDDLE_RIGHT); gridLayout.addComponent(this.userAccountNameAttributeName, 1, 15); final Label accountTypeAttributeNameLabel = new Label("Account Type:"); accountTypeAttributeNameLabel.setSizeUndefined(); this.accountTypeAttributeName = new TextField(); this.accountTypeAttributeName.setWidth("300px"); this.accountTypeAttributeName.setRequired(true); gridLayout.addComponent(accountTypeAttributeNameLabel, 0, 16); gridLayout.setComponentAlignment(accountTypeAttributeNameLabel, Alignment.MIDDLE_RIGHT); gridLayout.addComponent(this.accountTypeAttributeName, 1, 16); final Label firstNameAttributeNameLabel = new Label("First Name:"); firstNameAttributeNameLabel.setSizeUndefined(); this.firstNameAttributeName = new TextField(); this.firstNameAttributeName.setWidth("300px"); this.firstNameAttributeName.setRequired(true); gridLayout.addComponent(firstNameAttributeNameLabel, 0, 17); gridLayout.setComponentAlignment(firstNameAttributeNameLabel, Alignment.MIDDLE_RIGHT); gridLayout.addComponent(this.firstNameAttributeName, 1, 17); final Label surnameAttributeNameLabel = new Label("Surname:"); surnameAttributeNameLabel.setSizeUndefined(); this.surnameAttributeName = new TextField(); this.surnameAttributeName.setWidth("300px"); this.surnameAttributeName.setRequired(true); gridLayout.addComponent(surnameAttributeNameLabel, 0, 18); gridLayout.setComponentAlignment(surnameAttributeNameLabel, Alignment.MIDDLE_RIGHT); gridLayout.addComponent(this.surnameAttributeName, 1, 18); final Label departmentAttributeNameLabel = new Label("User Department:"); departmentAttributeNameLabel.setSizeUndefined(); this.departmentAttributeName = new TextField(); this.departmentAttributeName.setWidth("300px"); this.departmentAttributeName.setRequired(true); gridLayout.addComponent(departmentAttributeNameLabel, 0, 19); gridLayout.setComponentAlignment(departmentAttributeNameLabel, Alignment.MIDDLE_RIGHT); gridLayout.addComponent(this.departmentAttributeName, 1, 19); final Label ldapUserDescriptionAttributeNameLabel = new Label("User Description:"); ldapUserDescriptionAttributeNameLabel.setSizeUndefined(); this.ldapUserDescriptionAttributeName = new TextField(); this.ldapUserDescriptionAttributeName.setWidth("300px"); this.ldapUserDescriptionAttributeName.setRequired(true); gridLayout.addComponent(ldapUserDescriptionAttributeNameLabel, 0, 20); gridLayout.setComponentAlignment(ldapUserDescriptionAttributeNameLabel, Alignment.MIDDLE_RIGHT); gridLayout.addComponent(this.ldapUserDescriptionAttributeName, 1, 20); final Label memberOfAttributeNameLabel = new Label("Member Of:"); memberOfAttributeNameLabel.setSizeUndefined(); this.memberofAttributeName = new TextField(); this.memberofAttributeName.setWidth("300px"); this.memberofAttributeName.setRequired(true); gridLayout.addComponent(memberOfAttributeNameLabel, 0, 21); gridLayout.setComponentAlignment(memberOfAttributeNameLabel, Alignment.MIDDLE_RIGHT); gridLayout.addComponent(this.memberofAttributeName, 1, 21); final Label applicationSecurityGroupAttributeNameLabel = new Label("Group Name:"); applicationSecurityGroupAttributeNameLabel.setSizeUndefined(); this.applicationSecurityGroupAttributeName = new TextField(); this.applicationSecurityGroupAttributeName.setWidth("300px"); this.applicationSecurityGroupAttributeName.setRequired(true); gridLayout.addComponent(applicationSecurityGroupAttributeNameLabel, 0, 22); gridLayout.setComponentAlignment(applicationSecurityGroupAttributeNameLabel, Alignment.MIDDLE_RIGHT); gridLayout.addComponent(this.applicationSecurityGroupAttributeName, 1, 22); final Label applicationSecurityAttributeNameLabel = new Label("Group Description:"); applicationSecurityAttributeNameLabel.setSizeUndefined(); this.applicationSecurityDescriptionAttributeName = new TextField(); this.applicationSecurityDescriptionAttributeName.setWidth("300px"); this.applicationSecurityDescriptionAttributeName.setRequired(true); gridLayout.addComponent(applicationSecurityAttributeNameLabel, 0, 23); gridLayout.setComponentAlignment(applicationSecurityAttributeNameLabel, Alignment.MIDDLE_RIGHT); gridLayout.addComponent(this.applicationSecurityDescriptionAttributeName, 1, 23); final BeanItem<AuthenticationMethod> authenticationMethodItem = new BeanItem<AuthenticationMethod>( authenticationMethod); this.directoryName.setPropertyDataSource(authenticationMethodItem.getItemProperty("name")); this.ldapServerUrl.setPropertyDataSource(authenticationMethodItem.getItemProperty("ldapServerUrl")); this.ldapBindUserDn.setPropertyDataSource(authenticationMethodItem.getItemProperty("ldapBindUserDn")); this.ldapBindUserPassword .setPropertyDataSource(authenticationMethodItem.getItemProperty("ldapBindUserPassword")); this.ldapUserSearchDn .setPropertyDataSource(authenticationMethodItem.getItemProperty("ldapUserSearchBaseDn")); this.ldapUserSearchFilter .setPropertyDataSource(authenticationMethodItem.getItemProperty("ldapUserSearchFilter")); this.emailAttributeName .setPropertyDataSource(authenticationMethodItem.getItemProperty("emailAttributeName")); this.userAccountNameAttributeName .setPropertyDataSource(authenticationMethodItem.getItemProperty("userAccountNameAttributeName")); this.accountTypeAttributeName .setPropertyDataSource(authenticationMethodItem.getItemProperty("accountTypeAttributeName")); this.applicationSecurityBaseDn .setPropertyDataSource(authenticationMethodItem.getItemProperty("applicationSecurityBaseDn")); this.applicationSecurityGroupAttributeName.setPropertyDataSource( authenticationMethodItem.getItemProperty("applicationSecurityGroupAttributeName")); this.departmentAttributeName .setPropertyDataSource(authenticationMethodItem.getItemProperty("departmentAttributeName")); this.firstNameAttributeName .setPropertyDataSource(authenticationMethodItem.getItemProperty("firstNameAttributeName")); this.surnameAttributeName .setPropertyDataSource(authenticationMethodItem.getItemProperty("surnameAttributeName")); this.ldapUserDescriptionAttributeName.setPropertyDataSource( authenticationMethodItem.getItemProperty("ldapUserDescriptionAttributeName")); this.applicationSecurityDescriptionAttributeName.setPropertyDataSource( authenticationMethodItem.getItemProperty("applicationSecurityDescriptionAttributeName")); this.memberofAttributeName .setPropertyDataSource(authenticationMethodItem.getItemProperty("memberofAttributeName")); Button saveButton = new Button("Save"); saveButton.addClickListener(new Button.ClickListener() { public void buttonClick(ClickEvent event) { try { logger.info("saving auth method: " + authenticationMethod); authenticationMethod.setMethod(SecurityConstants.AUTH_METHOD_LDAP); if (authenticationMethod.getOrder() == null) { authenticationMethod.setOrder(securityService.getNumberOfAuthenticationMethods() + 1); } securityService.saveOrUpdateAuthenticationMethod(authenticationMethod); } catch (RuntimeException e) { StringWriter sw = new StringWriter(); PrintWriter pw = new PrintWriter(sw); e.printStackTrace(pw); Notification.show("Error trying to save the authentication method!", sw.toString(), Notification.Type.ERROR_MESSAGE); return; } Notification.show("Saved!"); } }); GridLayout buttonLayout = new GridLayout(1, 1); buttonLayout.setWidth("200px"); buttonLayout.setHeight("20px"); buttonLayout.addComponent(saveButton); gridLayout.addComponent(buttonLayout, 0, 24, 1, 24); VerticalLayout wrapperLayout = new VerticalLayout(); wrapperLayout.addComponent(gridLayout); wrapperLayout.setComponentAlignment(gridLayout, Alignment.TOP_CENTER); securityAdministrationPanel.setContent(wrapperLayout); layout.addComponent(securityAdministrationPanel); this.setContent(layout); } private class AuthenticationMethodDropdownValue { private String caption; private String value; /** * @param caption * @param value */ public AuthenticationMethodDropdownValue(String caption, String value) { super(); this.caption = caption; this.value = value; } /** * @return the caption */ public String getCaption() { return caption; } /** * @return the value */ public String getValue() { return value; } } }