MageTextView.java

package mil.nga.giat.mage.form;

import android.content.Context;
import android.content.res.TypedArray;
import android.support.v7.widget.AppCompatTextView;
import android.util.AttributeSet;
import android.util.Log;

import java.io.Serializable;
import java.text.DateFormat;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Locale;

import mil.nga.giat.mage.R;
import mil.nga.giat.mage.sdk.utils.ISO8601DateFormatFactory;
import mil.nga.giat.mage.utils.DateFormatFactory;

public class MageTextView extends AppCompatTextView implements MageControl {

	private static final String LOG_NAME = MageTextView.class.getName();

    private final DateFormat iso8601Format = ISO8601DateFormatFactory.ISO8601();
	private DateFormat dateFormat;

	private String propertyKey;
	private MagePropertyType propertyType;
	private Date propertyDate = new Date();
	private List<String> multiChoiceList = new ArrayList<>();
	protected Boolean isRequired = Boolean.FALSE;

	public MageTextView(Context context, AttributeSet attrs) {
		super(context, attrs);
		dateFormat = DateFormatFactory.format("yyyy-MM-dd HH:mm zz", Locale.getDefault(), context);
		TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.MageFormElement);
		setPropertyKey(typedArray.getString(R.styleable.MageFormElement_propertyKey));
		setPropertyType(MagePropertyType.getPropertyType(typedArray.getInt(R.styleable.MageFormElement_propertyType, 0)));
		typedArray.recycle();
	}

	@Override
	public void setPropertyKey(String propertyKey) {
		this.propertyKey = propertyKey;
	}

	@Override
	public String getPropertyKey() {
		return this.propertyKey;
	}

	@Override
	public void setPropertyType(MagePropertyType propertyType) {
		this.propertyType = propertyType;
	}

	@Override
	public MagePropertyType getPropertyType() {
		return this.propertyType;
	}

	@Override
	public Serializable getPropertyValue() {
		Serializable value = null;

		switch (getPropertyType()) {
		case STRING:
		case MULTILINE:
			value = getText().toString();
			break;
		case USER:
			break;
		case DATE:
			value = iso8601Format.format(propertyDate);
			break;
		case LOCATION:
			break;
		case MULTICHOICE:
			value = new ArrayList<>(multiChoiceList);
			break;
		case NUMBER:
			value = Double.parseDouble(getText().toString());
			break;
		default:
			break;
		}

		return value;
	}

	@Override
	public void setRequired(Boolean isRequired) {
		this.isRequired = isRequired;
	}

	@Override
	public void setPropertyValue(Serializable value) {
		if (value == null) {
			return;
		}

		switch (getPropertyType()) {
			case USER:
			case LOCATION:
				// Not properties, they live in the parent
				break;
			case STRING:
			case MULTILINE:
				setText(value.toString());
				break;
			case DATE:
				if (value instanceof Date) {
					propertyDate = (Date) value;
				} else if (value instanceof String) {
					try {
						propertyDate = iso8601Format.parse((String) value);
					} catch (ParseException e) {
						Log.e(LOG_NAME, "Could not parse date: " + value);
					}
				}
				setText(dateFormat.format(propertyDate));
				break;
			case MULTICHOICE:
				multiChoiceList = new ArrayList<>((ArrayList<String>)value);
				setText(value.toString().substring(1, value.toString().length() - 1));
				break;
			default:
				break;
		}
	}

	@Override
	public boolean validate() {
		Serializable value = getPropertyValue();

		String error = null;
		if (isRequired && value == null) {
			error = "Required, cannot be blank";
		}

		setError(error);

		return error == null;
	}
}