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Interface.java
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128 lines (112 loc) · 3.19 KB
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/*
* Copyright 2013 Klaus Reimer <[email protected]>
* See LICENSE.md for licensing information.
*
* Based on libusb <http://libusb.info/>:
*
* Copyright 2001 Johannes Erdfelt <[email protected]>
* Copyright 2007-2009 Daniel Drake <[email protected]>
* Copyright 2010-2012 Peter Stuge <[email protected]>
* Copyright 2008-2013 Nathan Hjelm <[email protected]>
* Copyright 2009-2013 Pete Batard <[email protected]>
* Copyright 2009-2013 Ludovic Rousseau <[email protected]>
* Copyright 2010-2012 Michael Plante <[email protected]>
* Copyright 2011-2013 Hans de Goede <[email protected]>
* Copyright 2012-2013 Martin Pieuchot <[email protected]>
* Copyright 2012-2013 Toby Gray <[email protected]>
*/
package org.usb4java;
import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
/**
* A collection of alternate settings for a particular USB interface.
*
* @author Klaus Reimer ([email protected])
*/
public final class Interface
{
/** The native pointer to the descriptor structure. */
private long interfacePointer;
/**
* Package-private constructor to prevent manual instantiation. Interfaces
* are always created by JNI.
*/
Interface()
{
// Empty
}
/**
* Returns the native pointer.
*
* @return The native pointer.
*/
public long getPointer()
{
return this.interfacePointer;
}
/**
* Returns the array with interface descriptors. The length of this array is
* determined by the {@link #numAltsetting()} field.
*
* @return The array with interface descriptors.
*/
public native InterfaceDescriptor[] altsetting();
/**
* Returns the number of alternate settings that belong to this interface.
*
* @return The number of alternate settings.
*/
public native int numAltsetting();
/**
* Returns a dump of this interface.
*
* @return The interface dump.
*/
public String dump()
{
final StringBuilder builder = new StringBuilder();
builder.append(String.format(
"Interface:%n" +
" numAltsetting %10d",
this.numAltsetting()));
for (final InterfaceDescriptor intDesc : this.altsetting())
{
builder.append(String.format("%n") + intDesc.dump());
}
return builder.toString();
}
@Override
public int hashCode()
{
return new HashCodeBuilder()
.append(this.altsetting())
.append(this.numAltsetting())
.toHashCode();
}
@Override
public boolean equals(final Object obj)
{
if (this == obj)
{
return true;
}
if (obj == null)
{
return false;
}
if (this.getClass() != obj.getClass())
{
return false;
}
final Interface other = (Interface) obj;
return new EqualsBuilder()
.append(this.altsetting(), other.altsetting())
.append(this.numAltsetting(), other.numAltsetting())
.isEquals();
}
@Override
public String toString()
{
return this.dump();
}
}