data-miner-manager/src/main/java/org/gcube/portlets/user/dataminermanager/client/form/OperatorFieldWidget.java

/**
 * 
 */
package org.gcube.portlets.user.dataminermanager.client.form;

import org.gcube.portlets.user.dataminermanager.client.bean.parameters.ListParameter;
import org.gcube.portlets.user.dataminermanager.client.bean.parameters.ObjectParameter;
import org.gcube.portlets.user.dataminermanager.client.bean.parameters.Parameter;

import com.allen_sauer.gwt.log.client.Log;
import com.google.gwt.user.client.ui.HTML;
import com.sencha.gxt.core.client.util.Margins;
import com.sencha.gxt.widget.core.client.container.HorizontalLayoutContainer;
import com.sencha.gxt.widget.core.client.container.HorizontalLayoutContainer.HorizontalLayoutData;
import com.sencha.gxt.widget.core.client.container.MarginData;
import com.sencha.gxt.widget.core.client.container.SimpleContainer;
import com.sencha.gxt.widget.core.client.form.FieldLabel;

/**
 * @author ceras
 *
 */
public class OperatorFieldWidget extends SimpleContainer {

	private Parameter parameter;

	private AbstractFld field;
	private HorizontalLayoutContainer horiz;

	// private Field generalParameterField;
	// private SimpleComboBox<String> inputDataParameterField;
	// private TextField<String> outputDataParameterField;

	/**
	 * 
	 */
	public OperatorFieldWidget(Parameter p) {
		super();
		this.parameter = p;
		horiz = new HorizontalLayoutContainer();
		
		try {
			// this.setStyleAttribute("margin", "10px");
			if (p.isObject())
				field = createObjectField((ObjectParameter) p);
			else if (p.isEnum())
				field = new EnumFld(p);
			else if (p.isTabular())
				field = new TabularFld(p);
			else if (p.isTabularList())
				field = new TabularListFld(p);
			else if (p.isColumn())
				field = new ColumnFld(p);
			else if (p.isColumnList())
				field = new ColumnListFld(p);
			else if (p.isList())
				field = createListField((ListParameter) p);
			else if (p.isFile())
				field = new FileFld(p);

			FieldLabel label = new FieldLabel(field.getWidget(), p.getName());
			horiz.add(label, new HorizontalLayoutData(-1, 1, new Margins(0)));
			
			if (p.getDescription() != null) {
				HTML descr = new HTML(p.getDescription());
				descr.addStyleName("workflow-fieldDescription");
				horiz.add(descr);
			}
			
		} catch (Throwable e) {
			Log.error("Error: " + e.getLocalizedMessage());
			e.printStackTrace();
			horiz.add(new FieldLabel(new HTML("Error in field retrieving!"),p.getName()));
		}
		
		add(horiz, new MarginData(0));
	}

	/**
	 * @return the parameter
	 */
	public Parameter getParameter() {
		return parameter;
	}

	public String getFieldValue() {
		return field.getValue();
	}

	public String getValue() {
		return getFieldValue();
	}

	/**
	 * @param p
	 * @return
	 */
	private AbstractFld createObjectField(ObjectParameter p) {
		String type = p.getType();
		if (type.contentEquals(Integer.class.getName())) {
			return new IntFld(p);
		} else if (type.contentEquals(String.class.getName())) {
			return new StringFld(p);
		} else if (type.contentEquals(Boolean.class.getName())) {
			return new BooleanFld(p);
		} else if (type.contentEquals(Double.class.getName())) {
			return new DoubleFld(p);
		} else if (type.contentEquals(Float.class.getName())) {
			return new FloatFld(p);
		} else
			return null;
	}

	/**
	 * 
	 */
	private AbstractFld createListField(ListParameter p) {
		String type = p.getType();

		if (type.contentEquals(String.class.getName())
				|| type.contentEquals("STRING")) { // TODO REMOVE "STRING"
			return new ListStringFld(p);
		} else if (type.contentEquals(Integer.class.getName())
				|| type.contentEquals("NUMBER")) {
			return new ListIntFld(p);
		}
		// } else if (type.contentEquals(Boolean.class.getName())) {
		// return new ListBooleanField(p);
		// } else if (type.contentEquals(Double.class.getName())) {
		// return new ListDoubleField(p);
		// } else if (type.contentEquals(Float.class.getName())) {
		// return new ListFloatField(p);
		// }
		else
			return null;
	}

	/**
	 * 
	 */
	public void updateOperatorParameterValue() {
		this.parameter.setValue(this.getFieldValue());
	}

	public AbstractFld getField() {
		return field;
	}

	public boolean isValid() {
		if (field != null)
			return field.isValid();
		else
			return false;
	}
}