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/* See LICENSE for licensing and NOTICE for copyright. */
package org.ldaptive.ssl;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.security.GeneralSecurityException;
import org.ldaptive.io.ResourceUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Base class for all credential readers. It provides support for loading files from resources on the classpath or a
* filepath. If a path is prefixed with the string "classpath:" it is interpreted as a classpath specification. If a
* path is prefixed with the string "file:" it is interpreted as a file path. Any other input throws
* IllegalArgumentException.
*
* @param Type of credential read by this instance.
*
* @author Middleware Services
*/
public abstract class AbstractCredentialReader implements CredentialReader
{
/** Logger for this class. */
protected final Logger logger = LoggerFactory.getLogger(getClass());
@Override
public T read(final String path, final String... params)
throws IOException, GeneralSecurityException
{
try (InputStream is = ResourceUtils.getResource(path)) {
logger.trace("found resource at {}", path);
final T credential = read(is, params);
logger.debug("Successfully loaded credential {} from path {}", credential, path);
return credential;
}
}
/**
* Gets a buffered input stream from the given input stream. If the given instance is already buffered, it is simply
* returned.
*
* @param is input stream from which to create buffered instance.
*
* @return buffered input stream. If the given instance is already buffered, it is simply returned.
*/
protected InputStream getBufferedInputStream(final InputStream is)
{
if (is.markSupported()) {
return is;
} else {
return new BufferedInputStream(is);
}
}
}
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