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Implement methods introduced in draft #5 NFC API.

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The API is implemented but still do not support muli-protocol tags.

Change-Id: I5cea3eec7b5b92e8e1106d4660e2400e4433e943
Signed-off-by: Nick Pelly <npelly@google.com>
This commit is contained in:
Sylvain Fonteneau
2010-10-15 14:41:22 -07:00
committed by Nick Pelly
parent 424991704b
commit a926540d54
5 changed files with 163 additions and 22 deletions
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48
core/java/android/nfc/NdefTag.java
View File

@@ -16,6 +16,8 @@
package android.nfc;
import java.util.HashMap;
import android.os.Parcel;
import android.os.Parcelable;
@@ -41,8 +43,8 @@ public class NdefTag extends Tag implements Parcelable {
* tag is discovered and by Parcelable methods.
* @hide
*/
public NdefTag(int type, byte[] uid, int nativeHandle, NdefMessage[] messages) {
super(type, true, uid, nativeHandle);
public NdefTag(String typeName, byte[] uid, int nativeHandle, NdefMessage[] messages) {
super(typeName, true, uid, nativeHandle);
mMessages = messages.clone();
}
@@ -62,10 +64,22 @@ public class NdefTag extends Tag implements Parcelable {
/**
* Get only the NDEF Messages from a single NDEF target on a tag.
* <p>
* This retrieves the NDEF Messages that were found on the Tag at discovery
* time. It does not cause any further RF activity, and does not block.
* <p>
* Most tags only contain a single NDEF message.
*
* @param target One of targets strings provided by getNdefTargets()
* @return NDEF Messages found at Tag discovery
*/
public NdefMessage[] getNdefMessages(String target) {
//TODO(nxp): new api method
throw new UnsupportedOperationException();
// TODO: handle multiprotocol
String[] localTypes = convertToNdefType(mTypeName);
if (!target.equals(localTypes[0])) {
throw new IllegalArgumentException();
}
return getNdefMessages();
}
/** TODO(npelly):
@@ -79,13 +93,35 @@ public class NdefTag extends Tag implements Parcelable {
public static final String TARGET_MIFARE_CLASSIC = "type_mifare_classic";
public static final String TARGET_OTHER = "other";
private static final HashMap<String, String[]> NDEF_TYPES_CONVERTION_TABLE = new HashMap<String, String[]>() {
{
// TODO: handle multiprotocol
// TODO: move INTERNAL_TARGET_Type to TARGET_TYPE mapping to NFC service
put(Tag.INTERNAL_TARGET_TYPE_JEWEL, new String[] { NdefTag.TARGET_TYPE_1 });
put(Tag.INTERNAL_TARGET_TYPE_MIFARE_UL, new String[] { NdefTag.TARGET_TYPE_2 });
put(Tag.INTERNAL_TARGET_TYPE_MIFARE_1K, new String[] { NdefTag.TARGET_MIFARE_CLASSIC });
put(Tag.INTERNAL_TARGET_TYPE_MIFARE_4K, new String[] { NdefTag.TARGET_MIFARE_CLASSIC });
put(Tag.INTERNAL_TARGET_TYPE_FELICA, new String[] { NdefTag.TARGET_TYPE_3 });
put(Tag.INTERNAL_TARGET_TYPE_ISO14443_4, new String[] { NdefTag.TARGET_TYPE_4 });
put(Tag.INTERNAL_TARGET_TYPE_MIFARE_DESFIRE, new String[] { NdefTag.TARGET_TYPE_4 });
}
};
private String[] convertToNdefType(String internalTypeName) {
String[] result = NDEF_TYPES_CONVERTION_TABLE.get(internalTypeName);
if (result == null) {
return new String[] { NdefTag.TARGET_OTHER };
}
return result;
}
/**
* Return the
*
* @return
*/
public String[] getNdefTargets() {
throw new UnsupportedOperationException();
return convertToNdefType(mTypeName);
}
@Override
@@ -107,7 +143,7 @@ public class NdefTag extends Tag implements Parcelable {
int messagesLength = in.readInt();
NdefMessage[] messages = new NdefMessage[messagesLength];
in.readTypedArray(messages, NdefMessage.CREATOR);
return new NdefTag(tag.mType, tag.mUid, tag.mNativeHandle, messages);
return new NdefTag(tag.mTypeName, tag.mUid, tag.mNativeHandle, messages);
}
public NdefTag[] newArray(int size) {
return new NdefTag[size];

23
core/java/android/nfc/NdefTagConnection.java
View File

@@ -39,8 +39,29 @@ public class NdefTagConnection extends RawTagConnection {
* Internal constructor, to be used by NfcAdapter
* @hide
*/
NdefTagConnection(INfcAdapter service, NdefTag tag) throws RemoteException {
/* package private */ NdefTagConnection(INfcAdapter service, NdefTag tag, String target) throws RemoteException {
super(service, tag);
String[] targets = tag.getNdefTargets();
int i;
// Check target validity
for (i=0; i<targets.length; i++) {
if (target.equals(targets[i])) {
break;
}
}
if (i >= targets.length) {
// Target not found
throw new IllegalArgumentException();
}
}
/**
* Internal constructor, to be used by NfcAdapter
* @hide
*/
/* package private */ NdefTagConnection(INfcAdapter service, NdefTag tag) throws RemoteException {
this(service, tag, tag.getNdefTargets()[0]);
}
/**

16
core/java/android/nfc/NfcAdapter.java
View File

@@ -276,8 +276,12 @@ public final class NfcAdapter {
* Create a raw tag connection to the specified Target
*/
public RawTagConnection createRawTagConnection(Tag tag, String target) {
//TODO
throw new UnsupportedOperationException();
try {
return new RawTagConnection(mService, tag, target);
} catch (RemoteException e) {
Log.e(TAG, "NFC service died", e);
return null;
}
}
/**
@@ -296,7 +300,11 @@ public final class NfcAdapter {
* Create an NDEF tag connection to the specified Target
*/
public NdefTagConnection createNdefTagConnection(NdefTag tag, String target) {
//TODO
throw new UnsupportedOperationException();
try {
return new NdefTagConnection(mService, tag, target);
} catch (RemoteException e) {
Log.e(TAG, "NFC service died", e);
return null;
}
}
}

25
core/java/android/nfc/RawTagConnection.java
View File

@@ -39,14 +39,34 @@ public class RawTagConnection {
/*package*/ final INfcTag mTagService;
/*package*/ final Tag mTag;
/*package*/ boolean mIsConnected;
/*package*/ String mSelectedTarget;
private static final String TAG = "NFC";
/* package private */ RawTagConnection(INfcAdapter service, Tag tag) throws RemoteException {
/* package private */ RawTagConnection(INfcAdapter service, Tag tag, String target) throws RemoteException {
String[] targets = tag.getRawTargets();
int i;
// Check target validity
for (i=0;i<targets.length;i++) {
if (target.equals(targets[i])) {
break;
}
}
if (i >= targets.length) {
// Target not found
throw new IllegalArgumentException();
}
mService = service;
mTagService = service.getNfcTagInterface();
mService.openTagConnection(tag); // TODO(nxp): don't connect until connect()
mTag = tag;
mSelectedTarget = target;
}
/* package private */ RawTagConnection(INfcAdapter service, Tag tag) throws RemoteException {
this(service, tag, tag.getRawTargets()[0]);
}
/**
@@ -57,8 +77,7 @@ public class RawTagConnection {
}
public String getTagTarget() {
//TODO
throw new UnsupportedOperationException();
return mSelectedTarget;
}
/**

73
core/java/android/nfc/Tag.java
View File

@@ -16,6 +16,8 @@
package android.nfc;
import java.util.HashMap;
import android.os.Parcel;
import android.os.Parcelable;
@@ -113,17 +115,73 @@ public class Tag implements Parcelable {
public static final String TARGET_OTHER = "other";
/*package*/ final int mType;
/*package*/ final String mTypeName;
/*package*/ final boolean mIsNdef;
/*package*/ final byte[] mUid;
/*package*/ final int mNativeHandle;
/*package*/ static final String INTERNAL_TARGET_TYPE_ISO14443_3A = "Iso14443-3A";
/*package*/ static final String INTERNAL_TARGET_TYPE_ISO14443_3B = "Iso14443-3B";
/*package*/ static final String INTERNAL_TARGET_TYPE_ISO14443_4 = "Iso14443-4";
/*package*/ static final String INTERNAL_TARGET_TYPE_MIFARE_UL = "MifareUL";
/*package*/ static final String INTERNAL_TARGET_TYPE_MIFARE_1K = "Mifare1K";
/*package*/ static final String INTERNAL_TARGET_TYPE_MIFARE_4K = "Mifare4K";
/*package*/ static final String INTERNAL_TARGET_TYPE_MIFARE_DESFIRE = "MifareDESFIRE";
/*package*/ static final String INTERNAL_TARGET_TYPE_MIFARE_UNKNOWN = "Unknown Mifare";
/*package*/ static final String INTERNAL_TARGET_TYPE_FELICA = "Felica";
/*package*/ static final String INTERNAL_TARGET_TYPE_JEWEL = "Jewel";
/*package*/ static final String INTERNAL_TARGET_TYPE_UNKNOWN = "Unknown Type";
private static final HashMap<String, Integer> INT_TYPES_CONVERTION_TABLE = new HashMap<String, Integer>() {
{
put(Tag.INTERNAL_TARGET_TYPE_ISO14443_3A, Tag.NFC_TAG_ISO14443_A );
put(Tag.INTERNAL_TARGET_TYPE_ISO14443_3B, Tag.NFC_TAG_ISO14443_B );
put(Tag.INTERNAL_TARGET_TYPE_MIFARE_UL, Tag.NFC_TAG_MIFARE );
put(Tag.INTERNAL_TARGET_TYPE_MIFARE_1K, Tag.NFC_TAG_MIFARE );
put(Tag.INTERNAL_TARGET_TYPE_MIFARE_4K, Tag.NFC_TAG_MIFARE );
put(Tag.INTERNAL_TARGET_TYPE_MIFARE_DESFIRE, Tag.NFC_TAG_MIFARE );
put(Tag.INTERNAL_TARGET_TYPE_FELICA, Tag.NFC_TAG_FELICA );
put(Tag.INTERNAL_TARGET_TYPE_JEWEL, Tag.NFC_TAG_JEWEL );
}
};
private int convertToInt(String internalTypeName) {
Integer result = INT_TYPES_CONVERTION_TABLE.get(internalTypeName);
if (result == null) {
return Tag.NFC_TAG_OTHER;
}
return result;
}
private static final HashMap<String, String[]> RAW_TYPES_CONVERTION_TABLE = new HashMap<String, String[]>() {
{
/* TODO: handle multiprotocol */
put(Tag.INTERNAL_TARGET_TYPE_ISO14443_3A, new String[] { Tag.TARGET_ISO_14443_3A });
put(Tag.INTERNAL_TARGET_TYPE_ISO14443_3B, new String[] { Tag.TARGET_ISO_14443_3B });
put(Tag.INTERNAL_TARGET_TYPE_MIFARE_UL, new String[] { Tag.TARGET_ISO_14443_3A });
put(Tag.INTERNAL_TARGET_TYPE_MIFARE_1K, new String[] { Tag.TARGET_ISO_14443_3A });
put(Tag.INTERNAL_TARGET_TYPE_MIFARE_4K, new String[] { Tag.TARGET_ISO_14443_3A });
put(Tag.INTERNAL_TARGET_TYPE_MIFARE_DESFIRE, new String[] { Tag.TARGET_ISO_14443_3A });
put(Tag.INTERNAL_TARGET_TYPE_MIFARE_UNKNOWN, new String[] { Tag.TARGET_ISO_14443_3A });
put(Tag.INTERNAL_TARGET_TYPE_FELICA, new String[] { Tag.TARGET_JIS_X_6319_4 });
put(Tag.INTERNAL_TARGET_TYPE_JEWEL, new String[] { Tag.TARGET_TOPAZ });
}
};
private String[] convertToRaw(String internalTypeName) {
String[] result = RAW_TYPES_CONVERTION_TABLE.get(internalTypeName);
if (result == null) {
return new String[] { Tag.TARGET_OTHER };
}
return result;
}
/**
* Hidden constructor to be used by NFC service only.
* @hide
*/
public Tag(int type, boolean isNdef, byte[] uid, int nativeHandle) {
mType = type;
public Tag(String typeName, boolean isNdef, byte[] uid, int nativeHandle) {
mTypeName = typeName;
mIsNdef = isNdef;
mUid = uid.clone();
mNativeHandle = nativeHandle;
@@ -144,8 +202,7 @@ public class Tag implements Parcelable {
* @return
*/
public String[] getRawTargets() {
//TODO
throw new UnsupportedOperationException();
return convertToRaw(mTypeName);
}
/**
@@ -159,7 +216,7 @@ public class Tag implements Parcelable {
* @hide
*/
public int getType() {
return mType;
return convertToInt(mTypeName);
}
/**
@@ -188,7 +245,7 @@ public class Tag implements Parcelable {
@Override
public void writeToParcel(Parcel dest, int flags) {
boolean[] booleans = new boolean[] {mIsNdef};
dest.writeInt(mType);
dest.writeString(mTypeName);
dest.writeBooleanArray(booleans);
dest.writeInt(mUid.length);
dest.writeByteArray(mUid);
@@ -199,7 +256,7 @@ public class Tag implements Parcelable {
new Parcelable.Creator<Tag>() {
public Tag createFromParcel(Parcel in) {
boolean[] booleans = new boolean[1];
int type = in.readInt();
String type = in.readString();
in.readBooleanArray(booleans);
boolean isNdef = booleans[0];
int uidLength = in.readInt();