1 | package org.apollo.io;
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2 |
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3 | import java.io.BufferedReader;
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4 | import java.io.File;
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5 | import java.io.FileReader;
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6 | import java.io.FileWriter;
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7 | import java.io.IOException;
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8 | import java.util.List;
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9 |
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10 | import org.apollo.audio.util.TrackMixSubject;
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11 |
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12 | /**
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13 | * A naive approach for saving and loading of mixes....
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14 | * Very hacky at this point and if released should re-think how banks are saved and loaded.
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15 | *
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16 | * @author Brook Novak
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17 | *
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18 | */
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19 | public class MixIO {
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20 |
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21 | /**
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22 | * Loads the master mix
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23 | *
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24 | * @param masterMixFilepath
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25 | * @return
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26 | * The solo prefix.
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27 | */
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28 | public static TrackMixSubject loadMasterMix(String masterMixFilepath) {
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29 | assert(masterMixFilepath != null);
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30 |
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31 | File mixFile = new File(masterMixFilepath);
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32 | if (!mixFile.exists()) {
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33 | try {
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34 | mixFile.createNewFile();
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35 | } catch (IOException e) {
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36 | e.printStackTrace();
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37 | System.err.println("ERROR: The master mix has been lost");
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38 | return null;
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39 | }
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40 | }
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41 |
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42 | BufferedReader in = null;
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43 |
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44 | TrackMixSubject masterMix = null;
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45 |
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46 | try {
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47 |
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48 | // Open the vbase for reading
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49 | in = new BufferedReader(new FileReader(mixFile));
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50 |
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51 | String line = null;
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52 | // Read the sbase file and check all names
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53 | while ((line = in.readLine()) != null) {
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54 | line = line.trim();
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55 | masterMix = TrackMixSubject.fromString(line);
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56 | if (masterMix != null) break;
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57 | }
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58 |
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59 | } catch (Exception e) {
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60 | e.printStackTrace();
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61 | // Clean up
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62 | } finally {
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63 | if (in != null) {
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64 | try {
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65 | in.close();
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66 | } catch (IOException e) {
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67 | e.printStackTrace();
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68 | }
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69 | }
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70 | }
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71 |
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72 | return masterMix;
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73 | }
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74 |
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75 | /**
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76 | * Saves a master mix
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77 | *
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78 | * @param masterMixFilepath
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79 | * Where to save
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80 | *
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81 | * @param mmix
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82 | * The mix to save as a master mix
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83 | */
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84 | public static void saveMasterMix(String masterMixFilepath, TrackMixSubject mmix) {
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85 |
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86 | assert(masterMixFilepath != null);
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87 | assert(mmix != null);
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88 |
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89 | File mixFile = new File(masterMixFilepath);
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90 | if (!mixFile.exists()) {
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91 | try {
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92 | mixFile.createNewFile();
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93 | } catch (IOException e) {
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94 | e.printStackTrace();
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95 | System.err.println("ERROR: Unable to save master mix");
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96 | return;
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97 | }
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98 | }
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99 |
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100 | FileWriter out = null;
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101 |
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102 | try {
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103 | out = new FileWriter(mixFile, false);
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104 | out.write(mmix.toParseableString());
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105 |
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106 | } catch (IOException e) {
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107 | e.printStackTrace();
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108 |
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109 | // Clean up
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110 | } finally {
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111 | if (out != null) {
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112 | try {
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113 | out.close();
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114 | } catch (IOException e) {
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115 | e.printStackTrace();
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116 | }
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117 | }
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118 | }
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119 |
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120 | }
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121 |
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122 |
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123 | /**
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124 | * Saves banks to file
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125 | *
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126 | * @param mixBatchPath
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127 | * Where to save
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128 | *
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129 | * @param banks
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130 | * The mixes to write to file
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131 | *
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132 | */
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133 | public static void saveBanks(String mixBatchPath, List<TrackMixSubject> banks) {
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134 |
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135 | assert(mixBatchPath != null);
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136 | assert(banks != null);
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137 |
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138 | File mixFile = new File(mixBatchPath);
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139 | if (!mixFile.exists()) {
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140 | try {
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141 | mixFile.createNewFile();
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142 | } catch (IOException e) {
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143 | e.printStackTrace();
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144 | System.err.println("ERROR: Unable to save mixes");
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145 | return;
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146 | }
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147 | }
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148 |
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149 | FileWriter out = null;
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150 |
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151 | try {
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152 |
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153 | out = new FileWriter(mixFile, false);
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154 |
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155 | for (int i = 0; i < banks.size(); i++) {
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156 |
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157 | TrackMixSubject mix = banks.get(i);
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158 | assert(mix != null);
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159 | out.write(mix.toParseableString() + "\n");
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160 | }
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161 |
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162 | } catch (IOException e) {
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163 | e.printStackTrace();
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164 |
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165 | // Clean up
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166 | } finally {
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167 | if (out != null) {
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168 | try {
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169 | out.close();
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170 | } catch (IOException e) {
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171 | e.printStackTrace();
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172 | }
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173 | }
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174 | }
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175 |
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176 | }
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177 |
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178 | /**
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179 | *
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180 | * @param banksFilepath
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181 | * The filepath of the banks file to load.
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182 | *
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183 | * @param banks
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184 | * A list to load the banks into. Must not be null - must be empty.
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185 | *
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186 | * @return
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187 | * True of success. False if IO operatoin failed / file does not exist.
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188 | */
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189 | public static boolean loadBanks(
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190 | List<TrackMixSubject> banks,
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191 | String banksFilepath) {
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192 |
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193 | assert(banks != null);
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194 | assert(banksFilepath != null);
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195 | assert(banks.isEmpty());
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196 |
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197 | File mixFile = new File(banksFilepath);
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198 | if (!mixFile.exists()) {
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199 | try {
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200 | mixFile.createNewFile();
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201 | } catch (IOException e) {
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202 | e.printStackTrace();
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203 | System.err.println("ERROR: The master mix has been lost");
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204 | }
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205 | return false;
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206 | }
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207 |
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208 | BufferedReader in = null;
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209 |
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210 | try {
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211 |
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212 | // Open the vbase for reading
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213 | in = new BufferedReader(new FileReader(mixFile));
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214 |
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215 | String line = null;
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216 | // Read the sbase file...
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217 | while ((line = in.readLine()) != null) {
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218 |
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219 | line = line.trim();
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220 | if (line.length() == 0) continue;
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221 |
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222 | TrackMixSubject mix = TrackMixSubject.fromString(line);
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223 |
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224 | if (mix != null)
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225 | banks.add(mix);
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226 |
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227 | }
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228 |
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229 | } catch (Exception e) {
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230 | e.printStackTrace();
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231 | // Clean up
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232 | } finally {
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233 | if (in != null) {
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234 | try {
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235 | in.close();
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236 | } catch (IOException e) {
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237 | e.printStackTrace();
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238 | }
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239 | }
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240 | }
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241 |
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242 | return true;
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243 | }
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244 |
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245 | }
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