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| <pre><span class="sourceLineNo">001</span>/*-<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> *******************************************************************************<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * Copyright (c) 2011, 2016 Diamond Light Source Ltd.<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * All rights reserved. This program and the accompanying materials<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * are made available under the terms of the Eclipse Public License v1.0<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * which accompanies this distribution, and is available at<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * http://www.eclipse.org/legal/epl-v10.html<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> *<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> * Contributors:<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * Peter Chang - initial API and implementation and/or initial documentation<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *******************************************************************************/<a name="line.11"></a> |
| <span class="sourceLineNo">012</span><a name="line.12"></a> |
| <span class="sourceLineNo">013</span>package org.eclipse.january.dataset;<a name="line.13"></a> |
| <span class="sourceLineNo">014</span><a name="line.14"></a> |
| <span class="sourceLineNo">015</span>import java.io.Serializable;<a name="line.15"></a> |
| <span class="sourceLineNo">016</span><a name="line.16"></a> |
| <span class="sourceLineNo">017</span>/**<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> * Class to represent a slice through a single dimension of a multi-dimensional dataset. A slice<a name="line.18"></a> |
| <span class="sourceLineNo">019</span> * comprises a starting position, a stopping position (not included) and a stepping size.<a name="line.19"></a> |
| <span class="sourceLineNo">020</span> */<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>public class Slice implements Cloneable, Serializable {<a name="line.21"></a> |
| <span class="sourceLineNo">022</span><a name="line.22"></a> |
| <span class="sourceLineNo">023</span> /**<a name="line.23"></a> |
| <span class="sourceLineNo">024</span> * <a name="line.24"></a> |
| <span class="sourceLineNo">025</span> */<a name="line.25"></a> |
| <span class="sourceLineNo">026</span> private static final long serialVersionUID = 3714928852236201310L;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span> private Integer start;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span> private Integer stop;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> private int step;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span><a name="line.30"></a> |
| <span class="sourceLineNo">031</span> private int length; // max length of dimension<a name="line.31"></a> |
| <span class="sourceLineNo">032</span><a name="line.32"></a> |
| <span class="sourceLineNo">033</span> public Slice() {<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> this(null, null, 1);<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> }<a name="line.35"></a> |
| <span class="sourceLineNo">036</span><a name="line.36"></a> |
| <span class="sourceLineNo">037</span> /**<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * Default to starting at 0 with steps of 1<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> * @param stop if null, then default to whatever shape is when converted<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> */<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> public Slice(final Integer stop) {<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> this(null, stop, 1);<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> }<a name="line.43"></a> |
| <span class="sourceLineNo">044</span><a name="line.44"></a> |
| <span class="sourceLineNo">045</span> /**<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * Default to steps of 1<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> * @param start if null, then default to 0<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * @param stop if null, then default to whatever shape is when converted<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> */<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> public Slice(final Integer start, final Integer stop) {<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> this(start, stop, 1);<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> }<a name="line.52"></a> |
| <span class="sourceLineNo">053</span><a name="line.53"></a> |
| <span class="sourceLineNo">054</span> /**<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> * <a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * @param start if null, then default to bound<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * @param stop if null, then default to bound<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> * @param step if null, then default to 1<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> */<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> public Slice(final Integer start, final Integer stop, final Integer step) {<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> this.start = start;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> this.stop = stop;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> this.step = step == null ? 1 : step;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> length = -1;<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> }<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> /**<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * Copy another slice<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * @param other<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> */<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> private Slice(final Slice other) {<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> start = other.start;<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> stop = other.stop;<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> step = other.step;<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> length = other.length;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> }<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> @Override<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> public Slice clone() {<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> return new Slice(this);<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> }<a name="line.81"></a> |
| <span class="sourceLineNo">082</span><a name="line.82"></a> |
| <span class="sourceLineNo">083</span> /**<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> * Set maximum value of slice<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> * @param length<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> * @return this slice<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> */<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> public Slice setLength(int length) {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> if (stop != null && step > 0 && length < stop) {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> throw new IllegalArgumentException("Length must be greater than or equal to stop");<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> }<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> if (start != null && step < 0 && length < start) {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> throw new IllegalArgumentException("Length must be greater than or equal to start");<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> }<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> this.length = length;<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> return this;<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> }<a name="line.97"></a> |
| <span class="sourceLineNo">098</span><a name="line.98"></a> |
| <span class="sourceLineNo">099</span> /**<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> * @return true if slice represents complete dimension<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> */<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> public boolean isSliceComplete() {<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> if (start == null && stop == null && (step == 1 || step == -1))<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> return true;<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> if (length > 0) {<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> return getNumSteps() == length;<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> }<a name="line.107"></a> |
| <span class="sourceLineNo">108</span><a name="line.108"></a> |
| <span class="sourceLineNo">109</span> return true;<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> }<a name="line.110"></a> |
| <span class="sourceLineNo">111</span><a name="line.111"></a> |
| <span class="sourceLineNo">112</span> /**<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> * @return maximum value of slice<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> */<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> public int getLength() {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> return length;<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span><a name="line.118"></a> |
| <span class="sourceLineNo">119</span> /**<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> * @return starting position of slice<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> */<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> public Integer getStart() {<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> return start;<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> }<a name="line.124"></a> |
| <span class="sourceLineNo">125</span><a name="line.125"></a> |
| <span class="sourceLineNo">126</span> /**<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> * @return stopping position of slice<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> */<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> public Integer getStop() {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> return stop;<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> }<a name="line.131"></a> |
| <span class="sourceLineNo">132</span><a name="line.132"></a> |
| <span class="sourceLineNo">133</span> /**<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> * @return step size of slice<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> */<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> public int getStep() {<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> return step;<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> }<a name="line.138"></a> |
| <span class="sourceLineNo">139</span><a name="line.139"></a> |
| <span class="sourceLineNo">140</span> /**<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> * Set starting position of slice<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> * @param start (can be null)<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> */<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> public void setStart(Integer start) {<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> if (start != null && length > 0) {<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> if (step > 0) {<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> int end = stop == null ? length : stop;<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> if (start >= end) {<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> throw new IllegalArgumentException("Non-null start must be less than end");<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> }<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> } else {<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> int end = stop == null ? -1 : stop;<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> if (start < end) {<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> throw new IllegalArgumentException("Non-null start must be greater than end for negative step");<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> }<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> }<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> }<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> this.start = start;<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> }<a name="line.159"></a> |
| <span class="sourceLineNo">160</span><a name="line.160"></a> |
| <span class="sourceLineNo">161</span> /**<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> * Set stopping position of slice<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> * @param stop (can be null)<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> */<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> public void setStop(Integer stop) {<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> if (stop != null && length > 0) {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> if (step > 0) {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> int beg = start == null ? 0 : start;<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> if (stop < beg) {<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> throw new IllegalArgumentException("Non-null stop must be greater than or equal to beginning");<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> }<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> } else {<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> int beg = start == null ? length - 1 : start;<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> if (stop >= beg) {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> throw new IllegalArgumentException("Non-null stop must be less than beginning for negative step");<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> }<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> }<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> if (stop > length)<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> stop = length;<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> }<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> this.stop = stop;<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> }<a name="line.182"></a> |
| <span class="sourceLineNo">183</span><a name="line.183"></a> |
| <span class="sourceLineNo">184</span> /**<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> * Set start and end from implied number of steps. I.e. shift start to position given by<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> * parameter whilst keeping size of slice fixed<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> * @param beg<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> * @return true if end reached<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> */<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> public boolean setPosition(int beg) {<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> boolean end = false;<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> int len = getNumSteps();<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> int max = getNumSteps(beg, length, step);<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> if (len > max) {<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> len = max;<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> end = true;<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> }<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> start = beg;<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> stop = start + (len-1) * step + 1;<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> return end;<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> }<a name="line.201"></a> |
| <span class="sourceLineNo">202</span><a name="line.202"></a> |
| <span class="sourceLineNo">203</span> /**<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> * Get position of n-th step in slice<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> * @param n<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> * @return position<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> */<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> public int getPosition(int n) {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> if (n < 0)<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> throw new IllegalArgumentException("Given n-th step should be non-negative");<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> if (n >= getNumSteps())<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> throw new IllegalArgumentException("N-th step exceeds extent of slice");<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> int beg;<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> if (start == null) {<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> if (step < 0) {<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> if (length < 0) {<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> if (stop == null) {<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> throw new IllegalStateException("Length or stop should be set");<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> }<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> beg = stop - 1;<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> } else {<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> beg = length - 1;<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> }<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> } else {<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> beg = 0;<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> }<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> } else {<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> beg = start;<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> }<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> return beg + step*n;<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> }<a name="line.231"></a> |
| <span class="sourceLineNo">232</span><a name="line.232"></a> |
| <span class="sourceLineNo">233</span> /**<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> * Set step size of slice<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> * @param step<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> */<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> public void setStep(int step) {<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> if (step == 0) {<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> throw new IllegalArgumentException("Step must not be zero");<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> }<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> this.step = step;<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> }<a name="line.242"></a> |
| <span class="sourceLineNo">243</span><a name="line.243"></a> |
| <span class="sourceLineNo">244</span> /**<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> * Append string representation of slice<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> * @param s<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> * @param len<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> * @param beg<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> * @param end<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> * @param del<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> */<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> public static void appendSliceToString(final StringBuilder s, final int len, final int beg, final int end, final int del) {<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> int o = s.length();<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> if (del > 0) {<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> if (beg != 0)<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> s.append(beg);<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> } else {<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> if (beg != len-1)<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> s.append(beg);<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> }<a name="line.260"></a> |
| <span class="sourceLineNo">261</span><a name="line.261"></a> |
| <span class="sourceLineNo">262</span> int n = getNumSteps(beg, end, del);<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> if (n == 1) {<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> if (s.length() == o) {<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> s.append(beg);<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> }<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> return;<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> }<a name="line.268"></a> |
| <span class="sourceLineNo">269</span><a name="line.269"></a> |
| <span class="sourceLineNo">270</span> s.append(':');<a name="line.270"></a> |
| <span class="sourceLineNo">271</span><a name="line.271"></a> |
| <span class="sourceLineNo">272</span> if (del > 0) {<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> if (end != len)<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> s.append(end);<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> } else {<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> if (end != -1)<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> s.append(end);<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> }<a name="line.278"></a> |
| <span class="sourceLineNo">279</span><a name="line.279"></a> |
| <span class="sourceLineNo">280</span> if (del != 1) {<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> s.append(':');<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> s.append(del);<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> }<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> }<a name="line.284"></a> |
| <span class="sourceLineNo">285</span><a name="line.285"></a> |
| <span class="sourceLineNo">286</span> @Override<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> public String toString() {<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> StringBuilder s = new StringBuilder();<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> appendSliceToString(s, length, start != null ? start : (step > 0 ? 0 : length - 1), stop != null ? stop : (step > 0 ? length : -1), step);<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> return s.toString();<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> }<a name="line.291"></a> |
| <span class="sourceLineNo">292</span><a name="line.292"></a> |
| <span class="sourceLineNo">293</span> /**<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> * @return number of steps in slice<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> */<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> public int getNumSteps() {<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> if (length < 0) {<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> if (stop == null)<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> throw new IllegalStateException("Slice is underspecified - stop is null and length is negative");<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> int beg = start == null ? (step > 0 ? 0: stop-1) : start;<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> if (step > 0 && stop <= beg)<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> return 0;<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> if (step < 0 && stop > beg)<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> return 0;<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> return getNumSteps(beg, stop, step);<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> }<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> int beg = start == null ? (step > 0 ? 0: length-1) : start;<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> int end = stop == null ? (step > 0 ? length : -1) : stop;<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> return getNumSteps(beg, end, step);<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> }<a name="line.310"></a> |
| <span class="sourceLineNo">311</span><a name="line.311"></a> |
| <span class="sourceLineNo">312</span> /**<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> * @param beg<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> * @param end (exclusive)<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> * @return number of steps between limits<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> */<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> public int getNumSteps(int beg, int end) {<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> return getNumSteps(beg, end, step);<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> }<a name="line.319"></a> |
| <span class="sourceLineNo">320</span><a name="line.320"></a> |
| <span class="sourceLineNo">321</span> private static int getNumSteps(int beg, int end, int step) {<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> int del = step > 0 ? 1 : -1;<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> return Math.max(0, (end - beg - del) / step + 1);<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> }<a name="line.324"></a> |
| <span class="sourceLineNo">325</span><a name="line.325"></a> |
| <span class="sourceLineNo">326</span> /**<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> * @return last value in slice (< stop if step > 0, > stop if step < 0)<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> */<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> public int getEnd() {<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> int n = getNumSteps() - 1;<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> if (n < 0)<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> throw new IllegalStateException("End is not defined");<a name="line.332"></a> |
| <span class="sourceLineNo">333</span><a name="line.333"></a> |
| <span class="sourceLineNo">334</span> return getPosition(n);<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> }<a name="line.335"></a> |
| <span class="sourceLineNo">336</span><a name="line.336"></a> |
| <span class="sourceLineNo">337</span> /**<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> * Flip slice direction so slice begins at previous end point, steps<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> * in the opposite direction, and finishes at the previous start point .<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> * <p><a name="line.340"></a> |
| <span class="sourceLineNo">341</span> * Note the stop value may not be preserved across two flips<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> */<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> public Slice flip() {<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> if (length < 0) {<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> Integer tmp = start == null ? null : start - step;<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> start = stop == null ? null : getEnd();<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> stop = tmp;<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> } else {<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> Integer tstart = start;<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> start = stop == null ? null : getEnd();<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> stop = tstart == null ? null : tstart - step;<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> }<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> step = -step;<a name="line.353"></a> |
| <span class="sourceLineNo">354</span><a name="line.354"></a> |
| <span class="sourceLineNo">355</span> return this;<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> }<a name="line.356"></a> |
| <span class="sourceLineNo">357</span><a name="line.357"></a> |
| <span class="sourceLineNo">358</span> /**<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> * Populate given start, stop, step arrays from given slice array <a name="line.359"></a> |
| <span class="sourceLineNo">360</span> * @param shape<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> * @param start<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> * @param stop<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> * @param step<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> * @param slice<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> */<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> public static void convertFromSlice(final Slice[] slice, final int[] shape, final int[] start, final int[] stop, final int[] step) {<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> final int rank = shape.length;<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> final int length = slice == null ? 0 : slice.length;<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> <a name="line.369"></a> |
| <span class="sourceLineNo">370</span> int i = 0;<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> for (; i < length; i++) {<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> if (length > rank)<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> break;<a name="line.373"></a> |
| <span class="sourceLineNo">374</span><a name="line.374"></a> |
| <span class="sourceLineNo">375</span> Slice s = slice[i];<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> if (s == null) {<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> start[i] = 0;<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> stop[i] = shape[i];<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> step[i] = 1;<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> continue;<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> }<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> int n;<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> if (s.start == null) {<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> start[i] = s.step > 0 ? 0 : shape[i] - 1;<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> } else {<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> n = s.start;<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> if (n < 0)<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> n += shape[i];<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> if (n < 0 || n >= shape[i]) {<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> throw new IllegalArgumentException(String.format("Start is out of bounds: %d is not in [%d,%d)",<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> n, s.start, shape[i]));<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> }<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> start[i] = n;<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> }<a name="line.394"></a> |
| <span class="sourceLineNo">395</span><a name="line.395"></a> |
| <span class="sourceLineNo">396</span> if (s.stop == null) {<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> stop[i] = s.step > 0 ? shape[i] : -1;<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> } else {<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> n = s.stop;<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> if (n < 0)<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> n += shape[i];<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> if (n < 0 || n > shape[i]) {<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> throw new IllegalArgumentException(String.format("Stop is out of bounds: %d is not in [%d,%d)",<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> n, s.stop, shape[i]));<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> }<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> stop[i] = n;<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> }<a name="line.407"></a> |
| <span class="sourceLineNo">408</span><a name="line.408"></a> |
| <span class="sourceLineNo">409</span> n = s.step;<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> if (n == 0) {<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> throw new IllegalArgumentException("Step cannot be zero");<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> }<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> if (n > 0) {<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> if (start[i] > stop[i])<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> throw new IllegalArgumentException("Start must be less than stop for positive steps");<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> } else {<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> if (start[i] < stop[i])<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> throw new IllegalArgumentException("Start must be greater than stop for negative steps"); <a name="line.418"></a> |
| <span class="sourceLineNo">419</span> }<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> step[i] = n;<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> }<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> for (; i < rank; i++) {<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> start[i] = 0;<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> stop[i] = shape[i];<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> step[i] = 1;<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> }<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> }<a name="line.427"></a> |
| <span class="sourceLineNo">428</span><a name="line.428"></a> |
| <span class="sourceLineNo">429</span> /**<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> * Convert from a set of integer arrays to a slice array<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> * @param start<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> * @param stop<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> * @param step<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> * @return a slice array<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> */<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> public static Slice[] convertToSlice(final int[] start, final int[] stop, final int[] step) {<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> int orank = start.length;<a name="line.437"></a> |
| <span class="sourceLineNo">438</span><a name="line.438"></a> |
| <span class="sourceLineNo">439</span> if (stop.length != orank || step.length != orank) {<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> throw new IllegalArgumentException("All arrays must be same length");<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> }<a name="line.441"></a> |
| <span class="sourceLineNo">442</span><a name="line.442"></a> |
| <span class="sourceLineNo">443</span> Slice[] slice = new Slice[orank];<a name="line.443"></a> |
| <span class="sourceLineNo">444</span><a name="line.444"></a> |
| <span class="sourceLineNo">445</span> for (int j = 0; j < orank; j++) {<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> slice[j] = new Slice(start[j], stop[j], step[j]);<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> }<a name="line.447"></a> |
| <span class="sourceLineNo">448</span><a name="line.448"></a> |
| <span class="sourceLineNo">449</span> return slice;<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> }<a name="line.450"></a> |
| <span class="sourceLineNo">451</span><a name="line.451"></a> |
| <span class="sourceLineNo">452</span> /**<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> * Convert a string to a slice array<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> * <a name="line.454"></a> |
| <span class="sourceLineNo">455</span> * @param sliceString<a name="line.455"></a> |
| <span class="sourceLineNo">456</span> * @return a slice array<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> */<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> public static Slice[] convertFromString(String sliceString) {<a name="line.458"></a> |
| <span class="sourceLineNo">459</span><a name="line.459"></a> |
| <span class="sourceLineNo">460</span> String clean = sliceString.replace("[", "");<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> clean = clean.replace("]", "");<a name="line.461"></a> |
| <span class="sourceLineNo">462</span><a name="line.462"></a> |
| <span class="sourceLineNo">463</span> String[] sub = clean.split(",");<a name="line.463"></a> |
| <span class="sourceLineNo">464</span><a name="line.464"></a> |
| <span class="sourceLineNo">465</span> Slice[] slices = new Slice[sub.length];<a name="line.465"></a> |
| <span class="sourceLineNo">466</span><a name="line.466"></a> |
| <span class="sourceLineNo">467</span> for (int i = 0; i < sub.length; i++) {<a name="line.467"></a> |
| <span class="sourceLineNo">468</span> String s = sub[i];<a name="line.468"></a> |
| <span class="sourceLineNo">469</span><a name="line.469"></a> |
| <span class="sourceLineNo">470</span> Slice slice = new Slice(); <a name="line.470"></a> |
| <span class="sourceLineNo">471</span> slices[i] = slice;<a name="line.471"></a> |
| <span class="sourceLineNo">472</span><a name="line.472"></a> |
| <span class="sourceLineNo">473</span> int idx0 = s.indexOf(":");<a name="line.473"></a> |
| <span class="sourceLineNo">474</span><a name="line.474"></a> |
| <span class="sourceLineNo">475</span> int n = 0;<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> if (idx0 == -1) {<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> n = Integer.parseInt(s);<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> slice.setStart(n);<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> slice.setStop(n + 1);<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> continue;<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> } else if (idx0 != 0) {<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> n = Integer.parseInt(s.substring(0, idx0));<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> }<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> slice.setStart(n);<a name="line.484"></a> |
| <span class="sourceLineNo">485</span><a name="line.485"></a> |
| <span class="sourceLineNo">486</span> idx0++;<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> int idx1 = s.indexOf(":", idx0);<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> if (idx1 == -1) {<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> String t = s.substring(idx0).trim(); <a name="line.489"></a> |
| <span class="sourceLineNo">490</span> if (t.length() == 0)<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> continue;<a name="line.491"></a> |
| <span class="sourceLineNo">492</span><a name="line.492"></a> |
| <span class="sourceLineNo">493</span> slice.setStop(Integer.parseInt(t));<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> continue;<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> } else if (idx1 != idx0) {<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> slice.setStop(Integer.parseInt(s.substring(idx0, idx1)));<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> }<a name="line.497"></a> |
| <span class="sourceLineNo">498</span><a name="line.498"></a> |
| <span class="sourceLineNo">499</span> String t = s.substring(idx1 + 1).trim(); <a name="line.499"></a> |
| <span class="sourceLineNo">500</span> if (t.length() > 0)<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> slice.setStep(Integer.parseInt(t));<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> }<a name="line.502"></a> |
| <span class="sourceLineNo">503</span><a name="line.503"></a> |
| <span class="sourceLineNo">504</span> return slices;<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> }<a name="line.505"></a> |
| <span class="sourceLineNo">506</span><a name="line.506"></a> |
| <span class="sourceLineNo">507</span> /**<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> * Create a string representing the slice taken from given shape<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> * @param shape<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> * @param start<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> * @param stop<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> * @param step<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> * @return string representation<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> */<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> public static String createString(final int[] shape, final int[] start, final int[] stop, final int[] step) {<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> final int rank = shape.length;<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> if (rank == 0) {<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> return "";<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> }<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> StringBuilder s = new StringBuilder();<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> for (int i = 0; i < rank; i++) {<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> int l = shape[i];<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> int d = step == null ? 1 : step[i];<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> int b = start == null ? (d > 0 ? 0 : l - 1) : start[i];<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> int e = stop == null ? (d > 0 ? l : -1) : stop[i];<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> <a name="line.526"></a> |
| <span class="sourceLineNo">527</span> appendSliceToString(s, l, b, e, d);<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> s.append(',');<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> }<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> <a name="line.530"></a> |
| <span class="sourceLineNo">531</span> return s.substring(0, s.length()-1);<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> }<a name="line.532"></a> |
| <span class="sourceLineNo">533</span><a name="line.533"></a> |
| <span class="sourceLineNo">534</span> /**<a name="line.534"></a> |
| <span class="sourceLineNo">535</span> * @param slices<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> * @return string specifying slices<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> */<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> public static String createString(Slice... slices) {<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> if (slices == null || slices.length == 0) {<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> return "";<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> }<a name="line.541"></a> |
| <span class="sourceLineNo">542</span><a name="line.542"></a> |
| <span class="sourceLineNo">543</span> StringBuilder t = new StringBuilder();<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> for (Slice s : slices) {<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> t.append(s != null ? s.toString() : ':');<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> t.append(',');<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> }<a name="line.547"></a> |
| <span class="sourceLineNo">548</span><a name="line.548"></a> |
| <span class="sourceLineNo">549</span> return t.substring(0, t.length() - 1);<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> }<a name="line.550"></a> |
| <span class="sourceLineNo">551</span>}<a name="line.551"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
