validationdelegateimpl.java

欢迎使用 FastJsp 开发框架! 编译说明： * 若要生成Api Javadoc文档

// Copyright 2005-2007 onetsoft.com
//
// 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.onetsoft.fastjsp.valid;

import com.onetsoft.fastjsp.PageCycle;
import com.onetsoft.fastjsp.AbstractServicer;
import com.onetsoft.fastjsp.AbstractPageCycle;
import com.onetsoft.fastjsp.util.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

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

/**
 * @author <a href="mailto:[e-mail]">hgw</a>
 */
public class ValidationDelegateImpl implements ValidationDelegate {

    static Log log = LogFactory.getLog(ValidationDelegateImpl.class);

    private FieldValidator[] validators = null;
    private ValidationMessageDecorator decorator = null;
    private PageCycle cycle = null;

    public ValidationDelegateImpl(PageCycle cycle, FieldValidator[] validators) {
        this.cycle = cycle;
        this.validators = validators;
        this.decorator = ((AbstractServicer) (((AbstractPageCycle) cycle).getServicer())).getModule().getValidationMessageDecoratorFactory().getDecorator();
    }


    public void validate() throws ValidationException {
        for (int i = 0; i < validators.length; i++) {
            if (validators[i] == null) continue;
            try {
                validators[i].validate(this.cycle);
            } catch (Exception e) {
                /* ignored */
            }
        }
        if (isError())
            throw new ValidationException(this);
    }


    public boolean isError() {
        for (int i = 0; i < validators.length; i++) {
            if (validators[i] == null) continue;
            if (validators[i].isError()) {
                return true;
            }
        }
        return false;
    }

    public boolean isError(String field) {
        for (int i = 0; i < validators.length; i++) {
            if (validators[i] == null) continue;
            if (validators[i].isError() && validators[i].getField().equals(field))
                return true;
        }
        return false;
    }

    public String getMessage(String field) {
        for (int i = 0; i < validators.length; i++) {
            if (validators[i] == null) continue;
            if (validators[i].isError() && validators[i].getField().equals(field))
                return decorator.decorate(validators[i].getMessage());
        }
        return StringUtils.EMPTY;
    }

    public String[] getMessages() {
        List list = new ArrayList(validators.length);
        for (int i = 0; i < validators.length; i++) {
            if (validators[i] == null) continue;
            if (validators[i].isError())
                list.add(decorator.decorate(validators[i].getMessage()));
        }
        return (String[]) list.toArray(new String[list.size()]);
    }

}