/*
 * Copyright 2002,2004 The Apache Software Foundation.
 * 
 * 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 org.apache.webapp.admin.resources;

import java.util.List;
import java.util.ArrayList;

import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.webapp.admin.LabelValueBean;

/**
 * Form bean for the individual data source page.
 *
 * @author Manveen Kaur
 * @version $Revision$ $Date$
 * @since 4.1
 */

public final class DataSourceForm extends BaseForm {


    // ----------------------------------------------------- Instance Variables


    // ------------------------------------------------------------- Properties


    /**
     * The url of the data source.
     */
    private String url = null;

    public String getUrl() {
        return (this.url);
    }

    public void setUrl(String url) {
        this.url = url;
    }

    /**
     * The JNDI name of the data source.
     */
    private String jndiName = null;

    public String getJndiName() {
        return (this.jndiName);
    }

    public void setJndiName(String jndiName) {
        this.jndiName = jndiName;
    }
    
    /**
     * The JDBC driver class of the data source.
     */
    private String driverClass = null;

    public String getDriverClass() {
        return (this.driverClass);
    }

    public void setDriverClass(String driverClass) {
        this.driverClass = driverClass;
    }

    
    /**
     * The username of the databse corresponding to the data source.
     */
    private String username = null;

    public String getUsername() {
        return (this.username);
    }

    public void setUsername(String username) {
        this.username = username;
    }

    
    /**
     * The password of the database corresponding to the data source.
     */
    private String password = null;

    public String getPassword() {
        return (this.password);
    }

    public void setPassword(String password) {
        this.password = password;
    }

    
    /**
     * The max number of active sessions to the data source.
     */
    private String active = null;

    public String getActive() {
        return (this.active);
    }

    public void setActive(String active) {
        this.active = active;
    }

    /**
     * The max number of idle connections to the data source.
     */
    private String idle = null;

    public String getIdle() {
        return (this.idle);
    }

    public void setIdle(String idle) {
        this.idle = idle;
    }

    /**
     * The maximum wait for a connection to the data source.
     */
    private String wait = null;

    public String getWait() {
        return (this.wait);
    }

    public void setWait(String wait) {
        this.wait = wait;
    }

    /**
     * The resource type of this data source.
     */
    private String resourcetype = null;
    
    /**
     * Return the resource type of the data source this bean refers to.
     */
    public String getResourcetype() {
        return this.resourcetype;
    }

    /**
     * Set the resource type of the data source this bean refers to.
     */
    public void setResourcetype(String resourcetype) {
        this.resourcetype = resourcetype;
    }
       
    /**
     * The path of this data source.
     */
    private String path = null;
    
    /**
     * Return the path of the data source this bean refers to.
     */
    public String getPath() {
        return this.path;
    }

    /**
     * Set the path of the data source this bean refers to.
     */
    public void setPath(String path) {
        this.path = path;
    }
       
    /**
     * The host of this data source.
     */
    private String host = null;
    
    /**
     * Return the host of the data source this bean refers to.
     */
    public String getHost() {
        return this.host;
    }

    /**
     * Set the host of the data source this bean refers to.
     */
    public void setHost(String host) {
        this.host = host;
    }    
    
       
    /**
     * The domain of this data source.
     */
    private String domain = null;
    
    /**
     * Return the domain of the data source this bean refers to.
     */
    public String getDomain() {
        return this.domain;
    }

    /**
     * Set the domain of the data source this bean refers to.
     */
    public void setDomain(String domain) {
        this.domain = domain;
    }
    
    /**
     * The validation query to the data source.
     */
    private String query = null;

    public String getQuery() {
        return (this.query);
    }

    public void setQuery(String query) {
        this.query = query;
    }
    
    /**
     * The type of the resource.
     */
    private String type = null;

    public String getType() {
        return (this.type);
    }

    public void setType(String type) {
        this.type = type;
    }

    // --------------------------------------------------------- Public Methods

    /**
     * Reset all properties to their default values.
     *
     * @param mapping The mapping used to select this instance
     * @param request The servlet request we are processing
     */
    public void reset(ActionMapping mapping, HttpServletRequest request) {

        super.reset(mapping, request);
        url = null;        
        jndiName = null;
        driverClass = null;
        username = null;
        password = null;
        type = null;
    
        active = null;
        idle = null;
        wait = null;
        query = null;
    }

    /**
     * Validate the properties that have been set from this HTTP request,
     * and return an <code>ActionErrors</code> object that encapsulates any
     * validation errors that have been found.  If no errors are found, return
     * <code>null</code> or an <code>ActionErrors</code> object with no
     * recorded error messages.
     *
     * @param mapping The mapping used to select this instance
     * @param request The servlet request we are processing
     */
    
    private ActionErrors errors = null;
    
    public ActionErrors validate(ActionMapping mapping,
    HttpServletRequest request) {

        errors = new ActionErrors();

        String submit = request.getParameter("submit");

        //if (submit != null) {

            // url is a required field
            if ((url == null) || (url.length() < 1)) {
                errors.add("url",
                           new ActionError("resources.error.url.required"));
            }

            // jndiName is a required field
            if (( jndiName == null) || (jndiName.length() < 1)) {
                errors.add("jndiName",
                           new ActionError("resources.error.jndiName.required"));
            }

            // driverClass is a required field
            if ((driverClass == null) || (driverClass.length() < 1)) {
                errors.add("driverClass",
                           new ActionError("resources.error.driverClass.required"));
            }
            
            // username is a required field
            if ((username == null) || (username.length() < 1)) {
                errors.add("username",
                           new ActionError("users.error.username.required"));
            }
            
            // commented out password can be an empty string
            // password is a required field
            //if ((password == null) || (password.length() < 1)) {
            //    errors.add("password",
            //               new ActionError("error.userPassword.required"));
            //
            
            // FIX ME -- need to do a range check
            numberCheck("active", active , false, 0, 10000);
            numberCheck("idle", idle , false, 0, 10000);
            numberCheck("wait", wait , false, 0, 10000);

            // Quotes not allowed in username
            if ((username != null) && (username.indexOf('"') >= 0)) {
                errors.add("username",
                           new ActionError("users.error.quotes"));
            }

            // Quotes not allowed in password
            if ((password != null) && (password.indexOf('"') > 0)) {
                errors.add("password",
                           new ActionError("users.error.quotes"));
            }
         //}
        return (errors);
    }
 
    /*
     * Helper method to check that it is a required number and
     * is a valid integer within the given range. (min, max).
     *
     * @param  field  The field name in the form for which this error occured.
     * @param  numText  The string representation of the number.
     * @param rangeCheck  Boolean value set to true of reange check should be performed.
     *
     * @param  min  The lower limit of the range
     * @param  max  The upper limit of the range
     *
     */
    
    private void numberCheck(String field, String numText, boolean rangeCheck,
                             int min, int max) {
        
        // Check for 'is required'
        if ((numText == null) || (numText.length() < 1)) {
            errors.add(field, new ActionError("resources.error."+field+".required"));
        } else {
            
            // check for 'must be a number' in the 'valid range'
            try {
                int num = Integer.parseInt(numText);
                // perform range check only if required
                if (rangeCheck) {
                    if ((num < min) || (num > max ))
                        errors.add( field,
                        new ActionError("resources.error."+ field +".range"));
                }
            } catch (NumberFormatException e) {
                errors.add(field,
                new ActionError("resources.integer.error"));
            }
        }
    }
    
}