com.github.datalking.common.convert.editor.URIEditor Maven / Gradle / Ivy

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package com.github.datalking.common.convert.editor;

import com.github.datalking.util.ClassUtils;
import com.github.datalking.util.ResourceUtils;
import com.github.datalking.util.StringUtils;

import java.beans.PropertyEditorSupport;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;

/**
 */
public class URIEditor extends PropertyEditorSupport {

	private final ClassLoader classLoader;

	private final boolean encode;

	public URIEditor() {
		this.classLoader = null;
		this.encode = true;
	}

	public URIEditor(boolean encode) {
		this.classLoader = null;
		this.encode = encode;
	}

	public URIEditor(ClassLoader classLoader) {
		this.classLoader = (classLoader != null ? classLoader : ClassUtils.getDefaultClassLoader());
		this.encode = true;
	}

	public URIEditor(ClassLoader classLoader, boolean encode) {
		this.classLoader = (classLoader != null ? classLoader : ClassUtils.getDefaultClassLoader());
		this.encode = encode;
	}


//	@Override
//	public void setAsText(String text) throws IllegalArgumentException {
//		if (StringUtils.hasText(text)) {
//			String uri = text.trim();
//			if (this.classLoader != null && uri.startsWith(ResourceUtils.CLASSPATH_URL_PREFIX)) {
//				ClassPathResource resource =
//						new ClassPathResource(uri.substring(ResourceUtils.CLASSPATH_URL_PREFIX.length()), this.classLoader);
//				try {
//					String url = resource.getURL().toString();
//					setValue(createURI(url));
//				}
//				catch (IOException ex) {
//					throw new IllegalArgumentException("Could not retrieve URI for " + resource + ": " + ex.getMessage());
//				}
//				catch (URISyntaxException ex) {
//					throw new IllegalArgumentException("Invalid URI syntax: " + ex);
//				}
//			}
//			else {
//				try {
//					setValue(createURI(uri));
//				}
//				catch (URISyntaxException ex) {
//					throw new IllegalArgumentException("Invalid URI syntax: " + ex);
//				}
//			}
//		}
//		else {
//			setValue(null);
//		}
//	}

	protected URI createURI(String value) throws URISyntaxException {
		int colonIndex = value.indexOf(':');
		if (this.encode && colonIndex != -1) {
			int fragmentIndex = value.indexOf('#', colonIndex + 1);
			String scheme = value.substring(0, colonIndex);
			String ssp = value.substring(colonIndex + 1, (fragmentIndex > 0 ? fragmentIndex : value.length()));
			String fragment = (fragmentIndex > 0 ? value.substring(fragmentIndex + 1) : null);
			return new URI(scheme, ssp, fragment);
		}
		else {
			// not encoding or the value contains no scheme - fallback to default
			return new URI(value);
		}
	}

	@Override
	public String getAsText() {
		URI value = (URI) getValue();
		return (value != null ? value.toString() : "");
	}

}