[CEC Configuration] Add XML schema parser API

The schema will be used for system and OEM level configuration of CEC.

Bug: 166430550
Test: Ran 'make update-api' and inspected the current.txt
Change-Id: I2359a4957e2d8f99818b8c53c3914794a0b4fa85

services/core/Android.bp

@@ -73,6 +73,7 @@ java_library_static {
         ":vold_aidl",
         ":platform-compat-config",
         ":display-device-config",
+        ":cec-config",
         "java/com/android/server/EventLogTags.logtags",
         "java/com/android/server/am/EventLogTags.logtags",
         "java/com/android/server/wm/EventLogTags.logtags",

services/core/xsd/Android.bp

@@ -20,3 +20,11 @@ xsd_config {
     api_dir: "display-device-config/schema",
     package_name: "com.android.server.display.config",
 }
+
+
+xsd_config {
+    name: "cec-config",
+    srcs: ["cec-config/cec-config.xsd"],
+    api_dir: "cec-config/schema",
+    package_name: "com.android.server.hdmi.cec.config",
+}

services/core/xsd/cec-config/cec-config.xsd

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xs:schema version="2.0"
+           elementFormDefault="qualified"
+           attributeFormDefault="unqualified"
+  xmlns:xs="http://www.w3.org/2001/XMLSchema">
+  <xs:element name="cec-settings">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element name="setting" type="setting" minOccurs="0" maxOccurs="unbounded"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:complexType name="setting">
+    <xs:attribute name="name" type="xs:string"/>
+    <xs:attribute name="user-configurable" type="xs:boolean"/>
+    <xs:element name="allowed-values" type="value-list" minOccurs="1" maxOccurs="1"/>
+    <xs:element name="default-value" type="value" minOccurs="1" maxOccurs="1"/>
+  </xs:complexType>
+  <xs:complexType name="value-list">
+      <xs:sequence>
+        <xs:element name="value" type="value" minOccurs="1" maxOccurs="unbounded"/>
+      </xs:sequence>
+  </xs:complexType>
+  <xs:complexType name="value">
+    <xs:attribute name="string-value" type="xs:string"/>
+  </xs:complexType>
+</xs:schema>

services/core/xsd/cec-config/schema/current.txt

@@ -0,0 +1,40 @@
+// Signature format: 2.0
+package com.android.server.hdmi.cec.config {
+
+  public class CecSettings {
+    ctor public CecSettings();
+    method public java.util.List<com.android.server.hdmi.cec.config.Setting> getSetting();
+  }
+
+  public class Setting {
+    ctor public Setting();
+    method public com.android.server.hdmi.cec.config.ValueList getAllowedValues();
+    method public com.android.server.hdmi.cec.config.Value getDefaultValue();
+    method public String getName();
+    method public boolean getUserConfigurable();
+    method public void setAllowedValues(com.android.server.hdmi.cec.config.ValueList);
+    method public void setDefaultValue(com.android.server.hdmi.cec.config.Value);
+    method public void setName(String);
+    method public void setUserConfigurable(boolean);
+  }
+
+  public class Value {
+    ctor public Value();
+    method public String getStringValue();
+    method public void setStringValue(String);
+  }
+
+  public class ValueList {
+    ctor public ValueList();
+    method public java.util.List<com.android.server.hdmi.cec.config.Value> getValue();
+  }
+
+  public class XmlParser {
+    ctor public XmlParser();
+    method public static com.android.server.hdmi.cec.config.CecSettings read(java.io.InputStream) throws javax.xml.datatype.DatatypeConfigurationException, java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+    method public static String readText(org.xmlpull.v1.XmlPullParser) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+    method public static void skip(org.xmlpull.v1.XmlPullParser) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+  }
+
+}
+

services/core/xsd/cec-config/schema/removed.txt

@@ -0,0 +1 @@
+// Signature format: 2.0