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    • com.aiwiown.face.internal.parser.xml.XmlConverter Maven / Gradle / Ivy

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    package com.aiwiown.face.internal.parser.xml;

import com.aiwiown.face.ApiConstants;
import com.aiwiown.face.ApiException;
import com.aiwiown.face.ApiResponse;
import com.aiwiown.face.internal.mapping.Converter;
import com.aiwiown.face.internal.mapping.Converters;
import com.aiwiown.face.internal.mapping.Reader;
import com.aiwiown.face.internal.util.XmlUtils;
import org.w3c.dom.Element;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

/**
 * JSON格式转换器。
 *
 * @author carver.gu
 * @since 1.0, Apr 11, 2010
 */
public class XmlConverter implements Converter {
    @Override
    public  T toResponse(String rsp, Class clazz)
            throws ApiException {
        Element root = XmlUtils.getRootElementFromString(rsp);
        return getModelFromXML(root, clazz);
    }

    private  T getModelFromXML(final Element element, Class clazz) throws ApiException {
        if (element == null) {
            return null;
        }

        return Converters.convert(clazz, new Reader() {
            @Override
            public boolean hasReturnField(Object name) {
                Element childE = XmlUtils.getChildElement(element, (String) name);
                return childE != null;
            }
            @Override
            public Object getPrimitiveObject(Object name) {
                return XmlUtils.getElementValue(element, (String) name);
            }
            @Override
            public Object getObject(Object name, Class type) throws ApiException {
                Element childE = XmlUtils.getChildElement(element, (String) name);
                if (childE != null) {
                    return getModelFromXML(childE, type);
                } else {
                    return null;
                }
            }
            @Override
            public List getListObjects(Object listName, Object itemName, Class subType)
                    throws ApiException {
                List list = null;
                Element listE = XmlUtils.getChildElement(element, (String) listName);

                if (listE != null) {
                    list = new ArrayList();
                    List itemEs = XmlUtils.getChildElements(listE, (String) itemName);
                    for (Element itemE : itemEs) {
                        Object obj = null;
                        String value = XmlUtils.getElementValue(itemE);

                        if (String.class.isAssignableFrom(subType)) {
                            obj = value;
                        } else if (Long.class.isAssignableFrom(subType)) {
                            obj = Long.valueOf(value);
                        } else if (Integer.class.isAssignableFrom(subType)) {
                            obj = Integer.valueOf(value);
                        } else if (Boolean.class.isAssignableFrom(subType)) {
                            obj = Boolean.valueOf(value);
                        } else if (Date.class.isAssignableFrom(subType)) {
                            DateFormat format = new SimpleDateFormat(
                                    ApiConstants.DATE_TIME_FORMAT);
                            try {
                                obj = format.parse(value);
                            } catch (ParseException e) {
                                throw new ApiException(e);
                            }
                        } else {
                            obj = getModelFromXML(itemE, subType);
                        }
                        if (obj != null) {
                            list.add(obj);
                        }
                    }
                }
                return list;
            }
        });
    }

}
    
    
    
    

    




    
    
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