ZipEntryOrInfoAdapter.java

package com.smartandroid.sa.zip;

import java.io.IOException;
import java.io.InputStream;
import java.util.zip.ZipEntry;

class ZipEntryOrInfoAdapter implements ZipEntryCallback, ZipInfoCallback {

	private final ZipEntryCallback entryCallback;
	private final ZipInfoCallback infoCallback;

	public ZipEntryOrInfoAdapter(ZipEntryCallback entryCallback,
			ZipInfoCallback infoCallback) {
		if (entryCallback != null && infoCallback != null
				|| entryCallback == null && infoCallback == null) {
			throw new IllegalArgumentException(
					"Only one of ZipEntryCallback and ZipInfoCallback must be specified together");
		}
		this.entryCallback = entryCallback;
		this.infoCallback = infoCallback;
	}

	public void process(ZipEntry zipEntry) throws IOException {
		infoCallback.process(zipEntry);
	}

	public void process(InputStream in, ZipEntry zipEntry) throws IOException {
		if (entryCallback != null) {
			entryCallback.process(in, zipEntry);
		} else {
			process(zipEntry);
		}
	}

}