CompilerChef.java revision bdc7aa8269502b3fc3ce73c124e4f1b2092502c9 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *      http://www.apache.org/licenses/LICENSE-2.0
7 * Unless required by applicable law or agreed to in writing, software
8 * distributed under the License is distributed on an "AS IS" BASIS,
9 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
10 * See the License for the specific language governing permissions and
11 * limitations under the License.
12 */
13
14package android.databinding.tool;
15
16import android.databinding.tool.store.ResourceBundle;
17import android.databinding.tool.util.L;
18import android.databinding.tool.writer.BRWriter;
19import android.databinding.tool.writer.DataBinderWriter;
20import android.databinding.tool.writer.DynamicUtilWriter;
21import android.databinding.tool.writer.JavaFileWriter;
22
23import java.util.Set;
24
25/**
26 * Chef class for compiler.
27 *
28 * Different build systems can initiate a version of this to handle their work
29 */
30public class CompilerChef {
31    private JavaFileWriter mFileWriter;
32    private ResourceBundle mResourceBundle;
33    private DataBinder mDataBinder;
34
35    private CompilerChef() {
36    }
37
38    public static CompilerChef createChef(ResourceBundle bundle, JavaFileWriter fileWriter) {
39        CompilerChef chef = new CompilerChef();
40
41        chef.mResourceBundle = bundle;
42        chef.mFileWriter = fileWriter;
43        chef.mResourceBundle.validateMultiResLayouts();
44        return chef;
45    }
46
47    public ResourceBundle getResourceBundle() {
48        return mResourceBundle;
49    }
50
51    public void ensureDataBinder() {
52        if (mDataBinder == null) {
53            mDataBinder = new DataBinder(mResourceBundle);
54            mDataBinder.setFileWriter(mFileWriter);
55        }
56    }
57
58    public boolean hasAnythingToGenerate() {
59        L.d("checking if we have anything to generate. bundle size: %s",
60                mResourceBundle == null ? -1 : mResourceBundle.getLayoutBundles().size());
61        return mResourceBundle != null && mResourceBundle.getLayoutBundles().size() > 0;
62    }
63
64    public void writeDataBinderMapper(int minSdk, BRWriter brWriter) {
65        ensureDataBinder();
66        final String pkg = "android.databinding";
67        DataBinderWriter dbr = new DataBinderWriter(pkg, mResourceBundle.getAppPackage(),
68                "DataBinderMapper", mDataBinder.getLayoutBinders(), minSdk);
69        mFileWriter.writeToFile(pkg + "." + dbr.getClassName(), dbr.write(brWriter));
70    }
71
72    public void writeDynamicUtil() {
73        DynamicUtilWriter dynamicUtil = new DynamicUtilWriter();
74        mFileWriter.writeToFile("android.databinding.DynamicUtil", dynamicUtil.write());
75    }
76
77    /**
78     * Adds variables to list of Bindables.
79     */
80    public void addBRVariables(BindableHolder bindables) {
81        ensureDataBinder();
82        for (LayoutBinder layoutBinder : mDataBinder.mLayoutBinders) {
83            for (String variableName : layoutBinder.getUserDefinedVariables().keySet()) {
84                bindables.addVariable(variableName, layoutBinder.getClassName());
85            }
86        }
87    }
88
89    public void sealModels() {
90        ensureDataBinder();
91        mDataBinder.sealModels();
92    }
93
94    public void writeViewBinderInterfaces(boolean isLibrary) {
95        ensureDataBinder();
96        mDataBinder.writerBaseClasses(isLibrary);
97    }
98
99    public void writeViewBinders(int minSdk) {
100        ensureDataBinder();
101        mDataBinder.writeBinders(minSdk);
102    }
103
104    public void writeComponent() {
105        ensureDataBinder();
106        mDataBinder.writeComponent();
107    }
108
109    public Set<String> getWrittenClassNames() {
110        ensureDataBinder();
111        return mDataBinder.getWrittenClassNames();
112    }
113
114    public interface BindableHolder {
115        void addVariable(String variableName, String containingClassName);
116    }
117}
118